Citations (83)
Keep up to date with the latest research on this topic with citation updates for this article.
Read on this site (3)
Lintao Li, Beiyue Wang, Xing Zhou, Hao Ding, Chang Sun, Yicun Wang, Fan Zhang & Jianning Zhao. (2023) METTL3-mediated long non-coding RNA MIR99AHG methylation targets miR-4660 to promote bone marrow mesenchymal stem cell osteogenic differentiation. Cell Cycle 22:4, pages 476-493.
Read now
Read now
Xiaoxiao Fan, Shengxi Jin, Yirun Li, Parikshit Asutosh Khadaroo, Yili Dai, Lifeng He, Daizhan Zhou & Hui Lin. (2019) Genetic And Epigenetic Regulation Of E-Cadherin Signaling In Human Hepatocellular Carcinoma. Cancer Management and Research 11, pages 8947-8963.
Read now
Read now
Mark Helm. (2017) Editorial: RNA modifications – what to read first?. RNA Biology 14:9, pages 1087-1088.
Read now
Read now
Articles from other publishers (80)
Jiahong Feng, Ting Jia, Yue Ren, Hao Zhang & Wanlong Zhu. (2024) Methylation of the leptin gene promoter is associated with a negative correlation between leptin concentration and body fat in Tupaia belangeri. Life Sciences 336, pages 122323.
Crossref
Crossref
Yang Feng, Sheng‐Jun Chen & Bi‐Feng Yuan. (2023)
Recent Advances in Deciphering the Mechanisms and Biological Functions of
DNA
Demethylation
. Chinese Journal of Chemistry.
Crossref
Crossref
Xiaoting Xi, Min Wang, Qianbo Chen, Jia Ma, Junyan Zhang & Yan Li. (2023) DNMT1 regulates miR-20a/TXNIP-mediated pyroptosis of retinal pigment epithelial cells through DNA methylation. Molecular and Cellular Endocrinology 577, pages 112012.
Crossref
Crossref
Boyuan Zhao & Yonggang Lv. (2023) A biomechanical view of epigenetic tumor regulation. Journal of Biological Physics 49:3, pages 283-307.
Crossref
Crossref
Giulia Martella, Nisha H. Motwani, Zareen Khan, Pedro F. M. Sousa, Elena Gorokhova & Hitesh V. Motwani. (2023) Simultaneous RNA and DNA Adductomics Using Single Data-Independent Acquisition Mass Spectrometry Analysis. Chemical Research in Toxicology.
Crossref
Crossref
Miron Sopic, Emma L. Robinson, Costanza Emanueli, Prashant Srivastava, Claudio Angione, Carlo Gaetano, Gianluigi Condorelli, Fabio Martelli, Thierry Pedrazzini & Yvan Devaux. (2023) Integration of epigenetic regulatory mechanisms in heart failure. Basic Research in Cardiology 118:1.
Crossref
Crossref
Marc Thibonnier & Sujoy Ghosh. (2023) Strategy for Pre-Clinical Development of Active Targeting MicroRNA Oligonucleotide Therapeutics for Unmet Medical Needs. International Journal of Molecular Sciences 24:8, pages 7126.
Crossref
Crossref
Zhaorong Huang, Caiyun Luo, Xinwei Hou, Daiyue Yu, Yuqian Su, Xinxin Li, Yinyan Luo, Guoying Liao, Jianhua Mu & Kai Wu. (2023) The m6A methyltransferase METTL3 affects cell proliferation and migration by regulating YAP expression in Hirschsprung disease. Pediatric Surgery International 39:1.
Crossref
Crossref
Justyna Jarczak, Michalina Miszczak & Kasia Radwanska. (2023) Is DNA methylation in the brain a mechanism of alcohol use disorder?. Frontiers in Behavioral Neuroscience 17.
Crossref
Crossref
Shuang Ye, Dan Wang, Ming Jin, Juan Du, Xue Chen, Hui Zhang, Chongchang Zhou, Shuai Fang & Kaitai Liu. (2022)
High eukaryotic initiation factor
5A2
expression predicts poor prognosis and may participate in the
SNHG16
/
miR
‐10b‐5p/
EIF5A2
regulatory axis in head and neck squamous cell carcinoma
. Journal of Clinical Laboratory Analysis 37:1.
Crossref
Crossref
Xiao‐Yang Jin, Zu‐Rui Huang, Li‐Jun Xie, Li Liu, Da‐Li Han & Liang Cheng. (2022) Photo‐Facilitated Detection and Sequencing of 5‐Formylcytidine RNA. Angewandte Chemie International Edition 61:49.
Crossref
Crossref
Xiao‐Yang Jin, Zu‐Rui Huang, Li‐Jun Xie, Li Liu, Da‐Li Han & Liang Cheng. (2022) Photo‐Facilitated Detection and Sequencing of 5‐Formylcytidine RNA. Angewandte Chemie 134:49.
Crossref
Crossref
Jae Yen Song, Kyung Eun Lee, Eun Jeong Byeon, Jieun Choi, Sa Jin Kim & Jae Eun Shin. (2022) Maternal Gestational Diabetes Influences DNA Methylation in the Serotonin System in the Human Placenta. Life 12:11, pages 1869.
Crossref
Crossref
Qiang Zhang, Xiangfei Sun, Jianyi Sun, Jiangshen Lu, Xiaodong Gao, Kuntang Shen & Xinyu Qin. (2022) RNA m5C regulator-mediated modification patterns and the cross-talk between tumor microenvironment infiltration in gastric cancer. Frontiers in Immunology 13.
Crossref
Crossref
Xin Ye, Ruyi Wang, Xiaoqian Yu, Zili Wang, Haifeng Hu & Hanchao Zhang. (2022) m6A/ m1A /m5C/m7G-related methylation modification patterns and immune characterization in prostate cancer. Frontiers in Pharmacology 13.
Crossref
Crossref
Juan Wu, Feng Lu, Bin Yu, Wenjun Wang & Xiaoqun Ye. (2022) The oncogenic role of SNRPB in human tumors: A pan-cancer analysis. Frontiers in Molecular Biosciences 9.
Crossref
Crossref
Zhijun Wang, Danfeng Cai, Xing Ju, Kan Li, Sisi Liang, Meixia Fang & Qinghua Nie. (2022) RNA Sequencing Reveals the Regulation of Betaine on Chicken Myogenesis. Animals 12:19, pages 2508.
Crossref
Crossref
Bin Shi, Wei-Wei Liu, Ke Yang, Guan-Min Jiang & Hao Wang. (2022) The role, mechanism, and application of RNA methyltransferase METTL14 in gastrointestinal cancer. Molecular Cancer 21:1.
Crossref
Crossref
Hao Wu, Juanjuan Qiu, Zhenru Wu, Tao He, Chen Zhou & Qing Lv. (2022) MiR-27a-3p binds to TET1 mediated DNA demethylation of ADCY6 regulates breast cancer progression via epithelial-mesenchymal transition. Frontiers in Oncology 12.
Crossref
Crossref
Min Wang, Meng Liu, Yingjian Huang, Ziyang Wang, Yuqian Wang, Ke He, Ruimin Bai, Tingyi Ying & Yan Zheng. (2022) Differential Gene Expression and Methylation Analysis of Melanoma in TCGA Database to Further Study the Expression Pattern of KYNU in Melanoma. Journal of Personalized Medicine 12:8, pages 1209.
Crossref
Crossref
Ming Bai & Chen Sun. (2022) M5C-Related lncRNA Predicts Lung Adenocarcinoma and Tumor Microenvironment Remodeling: Computational Biology and Basic Science. Frontiers in Cell and Developmental Biology 10.
Crossref
Crossref
Margherita Sisto, Domenico Ribatti & Sabrina Lisi. (2022) E-Cadherin Signaling in Salivary Gland Development and Autoimmunity. Journal of Clinical Medicine 11:8, pages 2241.
Crossref
Crossref
Tong Zhou, Guobin Chen, Meng Chen, Yubin Wang, Guiwei Zou & Hongwei Liang. (2022) Direct Full-Length RNA Sequencing Reveals an Important Role of Epigenetics During Sexual Reversal in Chinese Soft-Shelled Turtle. Frontiers in Cell and Developmental Biology 10.
Crossref
Crossref
Zhiguo Wang & Baofeng YangZhiguo Wang & Baofeng Yang. 2022. Polypharmacology. Polypharmacology
397
533
.
Biswanath Dinda & Shekhar Saha. 2022. Natural Products in Obesity and Diabetes. Natural Products in Obesity and Diabetes
1
61
.
Bowen Liu, Jinling Cao, Xiangyun Wang, Chunlei Guo, Yunxia Liu & Tianjiao Wang. (2021) Deciphering the tRNA-derived small RNAs: origin, development, and future. Cell Death & Disease 13:1.
Crossref
Crossref
Hengyi Jiang, Yanqing Gao, Lei Zhang, Dongrong Chen, Jianhua Gan & Alastair I. H. Murchie. (2021) The identification and characterization of a selected SAM-dependent methyltransferase ribozyme that is present in natural sequences. Nature Catalysis 4:10, pages 872-881.
Crossref
Crossref
Sonia Perales, Carolina Torres, Cristina Jimenez-Luna, Jose Prados, Joaquina Martinez-Galan, Jose Manuel Sanchez-Manas & Octavio Caba. (2021) Liquid biopsy approach to pancreatic cancer. World Journal of Gastrointestinal Oncology 13:10, pages 1263-1287.
Crossref
Crossref
Kezban KARTLAŞMIŞ & Nurten DİKMEN. (2021) Nükleobazların Demetilasyonu ve Güncel GelişmelerDemethylation of Nucleobases and Current Developments. Arşiv Kaynak Tarama Dergisi 30:3, pages 158-165.
Crossref
Crossref
Niko S. W. Jonasson, Rachel Janßen, Annika Menke, Fabian L. Zott, Hendrik Zipse & Lena J. Daumann. (2021) TET‐Like Oxidation in 5‐Methylcytosine and Derivatives: A Computational and Experimental Study. ChemBioChem.
Crossref
Crossref
Yujian Sang, Jianhui Liu, Xiangyang Li, Guiqing Zhou, Yue Zhang, Leqiang Gao, Yanzhi Zhao & Xianqing Zhou. (2021) The effect of SiNPs on DNA methylation of genome in mouse spermatocytes. Environmental Science and Pollution Research 28:32, pages 43684-43697.
Crossref
Crossref
Ming Jin, Hui Zhang, Jun Yang, Zhen Zheng & Kaitai Liu. (2021) Expression mode and prognostic value of FXYD family members in colon cancer. Aging 13:14, pages 18404-18422.
Crossref
Crossref
Matin Miryeganeh. (2021) Plants’ Epigenetic Mechanisms and Abiotic Stress. Genes 12:8, pages 1106.
Crossref
Crossref
Franziska R. Traube, Dilara Özdemir, Hanife Sahin, Constanze Scheel, Andrea F. Glück, Anna S. Geserich, Sabine Oganesian, Sarantos Kostidis, Katharina Iwan, René Rahimoff, Grazia Giorgio, Markus Müller, Fabio Spada, Martin Biel, Jürgen Cox, Martin Giera, Stylianos Michalakis & Thomas Carell. (2021) Redirected nuclear glutamate dehydrogenase supplies Tet3 with α-ketoglutarate in neurons. Nature Communications 12:1.
Crossref
Crossref
Sara Patrizi, Federica Pederiva & Adamo Pio d’Adamo. (2021) Whole-Genome Methylation Study of Congenital Lung Malformations in Children. Frontiers in Oncology 11.
Crossref
Crossref
Laurin Flemmich, Sarah Heel, Sarah Moreno, Kathrin Breuker & Ronald Micura. (2021) A natural riboswitch scaffold with self-methylation activity. Nature Communications 12:1.
Crossref
Crossref
Qin Dang, Bo Shao, Quanbo Zhou, Chen Chen, Yaxin Guo, Guixian Wang, Jinbo Liu, Quancheng Kan, Weitang Yuan & Zhenqiang Sun. (2021) RNA N6-Methyladenosine in Cancer Metastasis: Roles, Mechanisms, and Applications. Frontiers in Oncology 11.
Crossref
Crossref
Zi-Yi Feng, Hao-Yu Gao & Tian-Da Feng. (2021) Immune Infiltrates of m6A RNA Methylation-Related lncRNAs and Identification of PD-L1 in Patients With Primary Head and Neck Squamous Cell Carcinoma. Frontiers in Cell and Developmental Biology 9.
Crossref
Crossref
María José López-Ibarra & Marta Elena Hernández-Caballero. 2021. DNA - Damages and Repair Mechanisms. DNA - Damages and Repair Mechanisms.
Freideriki Michailidou & Andrea Rentmeister. (2021) Harnessing methylation and AdoMet-utilising enzymes for selective modification in cascade reactions. Organic & Biomolecular Chemistry 19:17, pages 3756-3762.
Crossref
Crossref
Wenbo Jiang, Huanyu Wu, Xinyang Yu, Yu Wang, Wenbo Gu, Wei Wei, Bai Li, XiTao Jiang, Yue Wang, Wanying Hou, Qiuying Dong, Xuemin Yan, Ying Li, Changhao Sun & Tianshu Han. (2021) Third-hand smoke exposure is associated with abnormal serum melatonin level via hypomethylation of CYP1A2 promoter: Evidence from human and animal studies. Environmental Pollution 277, pages 116669.
Crossref
Crossref
Jian Xu, Yunhong Cai, ZhenBang Ma, Bo Jiang, Wenxiao Liu, Jing Cheng, Nannan Guo, Zishu Wang, Joshua E. Sealy, Cuiping Song, Xiaojia Wang & Yongqing Li. (2021) The RNA helicase DDX5 promotes viral infection via regulating N6-methyladenosine levels on the DHX58 and NFκB transcripts to dampen antiviral innate immunity. PLOS Pathogens 17:4, pages e1009530.
Crossref
Crossref
Valentina Tateo, Lisa Manuzzi, Claudia Parisi, Andrea De Giglio, Davide Campana, Maria Abbondanza Pantaleo & Giuseppe Lamberti. (2021) An Overview on Molecular Characterization of Thymic Tumors: Old and New Targets for Clinical Advances. Pharmaceuticals 14:4, pages 316.
Crossref
Crossref
Shaun Wood, Amber Willbanks & Jason X. Cheng. (2021) The Role of RNA Modifications and RNA-modifying Proteins in Cancer Therapy and Drug Resistance. Current Cancer Drug Targets 21:4, pages 326-352.
Crossref
Crossref
Annamaria Ruggiano & Kristijan Ramadan. (2021) DNA–protein crosslink proteases in genome stability. Communications Biology 4:1.
Crossref
Crossref
Miao Wang, Yu Xiao, Yan Li, Xiaoying Wang, Suzhen Qi, Ye Wang, Liuwei Zhao, Kai Wang, Wenjun Peng, Guan-Zheng Luo, Xiaofeng Xue, Guifang Jia & Liming Wu. (2021) RNA m6A Modification Functions in Larval Development and Caste Differentiation in Honeybee (Apis mellifera). Cell Reports 34:1, pages 108580.
Crossref
Crossref
Shiyang Pan & Xincen Duan. 2021. Clinical Molecular Diagnostics. Clinical Molecular Diagnostics
123
137
.
Shikha Sharma & Nibedita Lenka. 2021. Epitranscriptomics. Epitranscriptomics
79
120
.
Franziska R. Traube, Sarah Schiffers & Thomas Carell. 2021. TET Proteins and DNA Demethylation. TET Proteins and DNA Demethylation
77
94
.
Shixin Xiang, Yongshun Ma, Jing Shen, Yueshui Zhao, Xu Wu, Mingxing Li, Xiao Yang, Parham Jabbarzadeh Kaboli, Fukuan Du, Huijiao Ji, Yuan Zheng, Xiang Li, Jing Li, Qinglian Wen & Zhangang Xiao. (2020) m5C RNA Methylation Primarily Affects the ErbB and PI3K–Akt Signaling Pathways in Gastrointestinal Cancer. Frontiers in Molecular Biosciences 7.
Crossref
Crossref
Chen Xue, Yalei Zhao & Lanjuan Li. (2020) Advances in RNA cytosine-5 methylation: detection, regulatory mechanisms, biological functions and links to cancer. Biomarker Research 8:1.
Crossref
Crossref
Qiang Wang, Wei Geng, Huimin Guo, Zhangding Wang, Kaiyue Xu, Chen Chen & Shouyu Wang. (2020) Emerging role of RNA methyltransferase METTL3 in gastrointestinal cancer. Journal of Hematology & Oncology 13:1.
Crossref
Crossref
Ryan T. Bell, Yuri I. Wolf & Eugene V. Koonin. (2020) Modified base-binding EVE and DCD domains: striking diversity of genomic contexts in prokaryotes and predicted involvement in a variety of cellular processes. BMC Biology 18:1.
Crossref
Crossref
Carolin P. M. Scheitl, Mohammad Ghaem Maghami, Ann-Kathrin Lenz & Claudia Höbartner. (2020) Site-specific RNA methylation by a methyltransferase ribozyme. Nature 587:7835, pages 663-667.
Crossref
Crossref
Romana Bacova, Martina Kolackova, Borivoj Klejdus, Vojtech Adam & Dalibor Huska. (2020) Epigenetic mechanisms leading to genetic flexibility during abiotic stress responses in microalgae: A review. Algal Research 50, pages 101999.
Crossref
Crossref
Jessica Keverne & Elisabeth B. Binder. (2020) A Review of epigenetics in psychiatry: focus on environmental risk factors. Medizinische Genetik 32:1, pages 57-64.
Crossref
Crossref
Jianzhong Hou, Haojie Shan, Yingchao Zhang, Youben Fan & Bo Wu. (2020) m6A RNA methylation regulators have prognostic value in papillary thyroid carcinoma. American Journal of Otolaryngology 41:4, pages 102547.
Crossref
Crossref
Xiaoteng Fan, Tingting Hou, Yongjing Guan, Xiangju Li, Shuai Zhang & Zaizhao Wang. (2020) Genomic responses of DNA methylation and transcript profiles in zebrafish cells upon nutrient deprivation stress. Science of The Total Environment 722, pages 137980.
Crossref
Crossref
Haobo Weng, Qiongfei Pei, Maoling Yang, Jing Zhang, Zhenli Cheng & Qijian Yi. (2020) Hypomethylation of C1q/tumor necrosis factor-related protein-1 promoter region in whole blood and risks for coronary artery aneurysms in Kawasaki disease. International Journal of Cardiology 307, pages 159-163.
Crossref
Crossref
Ye Eun Rebecca Jeong, Stefan A. P. Lenz & Stacey D. Wetmore. (2020) DFT Study on the Deglycosylation of Methylated, Oxidized, and Canonical Pyrimidine Nucleosides in Water: Implications for Epigenetic Regulation and DNA Repair. The Journal of Physical Chemistry B 124:12, pages 2392-2400.
Crossref
Crossref
Nicolas V. Cornelissen, Freideriki Michailidou, Fabian Muttach, Kristina Rau & Andrea Rentmeister. (2020) Nucleoside-modified AdoMet analogues for differential methyltransferase targeting. Chemical Communications 56:14, pages 2115-2118.
Crossref
Crossref
Wen Shen, Chao Gao, Ramon Cueto, Lu Liu, Hangfei Fu, Ying Shao, William Y. Yang, Pu Fang, Eric T. Choi, Qinghua Wu, Xiaofeng Yang & Hong Wang. (2020) Homocysteine-methionine cycle is a metabolic sensor system controlling methylation-regulated pathological signaling. Redox Biology 28, pages 101322.
Crossref
Crossref
Guoyan Tian, Jin Chen, Yan Luo, Jin Yang, Tao Gao & Junping Shi. (2019) Ethanol extract of Ligustrum lucidum Ait. leaves suppressed hepatocellular carcinoma in vitro and in vivo. Cancer Cell International 19:1.
Crossref
Crossref
Jagna Chmielowska-Bąk, Magdalena Arasimowicz-Jelonek & Joanna Deckert. (2019) In search of the mRNA modification landscape in plants. BMC Plant Biology 19:1.
Crossref
Crossref
Pingping Han & Sašo Ivanovski. (2019) Effect of Saliva Collection Methods on the Detection of Periodontium-Related Genetic and Epigenetic Biomarkers—A Pilot Study. International Journal of Molecular Sciences 20:19, pages 4729.
Crossref
Crossref
John Alexander Edgar. (2019) L-ascorbic acid and the evolution of multicellular eukaryotes. Journal of Theoretical Biology 476, pages 62-73.
Crossref
Crossref
Abdalrahman ZarzourHa Won KimNeal L. Weintraub. (2019) Epigenetic Regulation of Vascular Diseases. Arteriosclerosis, Thrombosis, and Vascular Biology 39:6, pages 984-990.
Crossref
Crossref
Alexandre Hofer, Zheng J. Liu & Shankar Balasubramanian. (2019) Detection, Structure and Function of Modified DNA Bases. Journal of the American Chemical Society 141:16, pages 6420-6429.
Crossref
Crossref
Bing Chen, Ya Li, Ruifeng Song, Chen Xue & Feng Xu. (2019) Functions of RNA N6-methyladenosine modification in cancer progression. Molecular Biology Reports 46:2, pages 2567-2575.
Crossref
Crossref
Li‐Jun Xie, Xiao‐Ti Yang, Rui‐Li Wang, Hou‐Ping Cheng, Zhi‐Yan Li, Li Liu, Lanqun Mao, Ming Wang & Liang Cheng. (2019)
Identification of Flavin Mononucleotide as a Cell‐Active Artificial
N
6
‐Methyladenosine RNA Demethylase
. Angewandte Chemie International Edition 58:15, pages 5028-5032.
Crossref
Crossref
Li‐Jun Xie, Xiao‐Ti Yang, Rui‐Li Wang, Hou‐Ping Cheng, Zhi‐Yan Li, Li Liu, Lanqun Mao, Ming Wang & Liang Cheng. (2019)
Identification of Flavin Mononucleotide as a Cell‐Active Artificial
N
6
‐Methyladenosine RNA Demethylase
. Angewandte Chemie 131:15, pages 5082-5086.
Crossref
Crossref
Sameer Dixit, Jeremy C. Henderson & Juan D. Alfonzo. (2019) Multi-Substrate Specificity and the Evolutionary Basis for Interdependence in tRNA Editing and Methylation Enzymes. Frontiers in Genetics 10.
Crossref
Crossref
Bing Chen, Ya Li, Ruifeng Song, Chen Xue & Feng Xu. (2019) Functions of RNA N6-methyladenosine modification in cancer progression. Molecular Biology Reports 46:1, pages 1383-1391.
Crossref
Crossref
Elisabeth B. Binder. (2019) Umwelt und EpigenetikEnvironment and epigenetics. Der Nervenarzt 90:2, pages 107-113.
Crossref
Crossref
Lukas Trixl & Alexandra Lusser. (2018) The dynamic RNA modification 5‐methylcytosine and its emerging role as an epitranscriptomic mark. WIREs RNA 10:1.
Crossref
Crossref
Xiaojun Zhu, Chenglu Xiao & Jing-Wei Xiong. (2018) Epigenetic Regulation of Organ Regeneration in Zebrafish. Journal of Cardiovascular Development and Disease 5:4, pages 57.
Crossref
Crossref
Colette Atdjian, Laura Iannazzo, Emmanuelle Braud & Mélanie Ethève-Quelquejeu. (2018)
Synthesis of SAM-Adenosine Conjugates for the Study of m
6
A-RNA Methyltransferases
. European Journal of Organic Chemistry 2018:32, pages 4411-4425.
Crossref
Crossref
Antonio Lentini, Cathrine Lagerwall, Svante Vikingsson, Heidi K. Mjoseng, Karolos Douvlataniotis, Hartmut Vogt, Henrik Green, Richard R. Meehan, Mikael Benson & Colm E. Nestor. (2018) A reassessment of DNA-immunoprecipitation-based genomic profiling. Nature Methods 15:7, pages 499-504.
Crossref
Crossref
Ludovic Halby, Nils Marechal, Dany Pechalrieu, Vincent Cura, Don-Marc Franchini, Céline Faux, Fréderic Alby, Nathalie Troffer-Charlier, Srikanth Kudithipudi, Albert Jeltsch, Wahiba Aouadi, Etienne Decroly, Jean-Claude Guillemot, Patrick Page, Clotilde Ferroud, Luc Bonnefond, Dominique Guianvarc'h, Jean Cavarelli & Paola B. Arimondo. (2018) Hijacking DNA methyltransferase transition state analogues to produce chemical scaffolds for PRMT inhibitors. Philosophical Transactions of the Royal Society B: Biological Sciences 373:1748, pages 20170072.
Crossref
Crossref
Imane Saif, Yassine Kasmi, Karam Allali & Moulay Mustapha Ennaji. (2018) Prediction of DNA methylation in the promoter of gene suppressor tumor. Gene 651, pages 166-173.
Crossref
Crossref