References
- Asefi Y, Gohari Mahmoudabad A, Sezavar AH, Mirshahvaladi S, Morteza A, Mostafa A. Association between maternal cadmium exposure and preterm birth: a meta-analysis. Int J Environ Health Res. 2020;1–10.
- Ghaemi K, Ghoreishi A, Rabiee N, et al. Blood lead levels in asymptomatic opium addict patients; a case control study. Emergency (Tehran). 2017;5(1):e69.
- Alinejad S, Aaseth J, Abdollahi M, Hassanian-Moghaddam H, Mehrpour O. Clinical aspects of opium adulterated with lead in Iran: a review. Basic Clin Pharmacol Toxicol. 2018;122(1):56–64. doi:https://doi.org/10.1111/bcpt.12855.
- Habibiyan A, Ezoddin M, Lamei N, Abdi K, Amini M, Ghazi-Khansari M. Ultrasonic assisted switchable solvent based on liquid phase microextraction combined with micro sample injection flame atomic absorption spectrometry for determination of some heavy metals in water, urine and tea infusion samples. J Mol Liq. 2017;242:492–496. doi:https://doi.org/10.1016/j.molliq.2017.07.043.
- Mitra AK, Ahua E, Saha PK. Prevalence of and risk factors for lead poisoning in young children in Bangladesh. J Health Popul Nutr. 2012;30(4):404.
- Colman A, Maharaj D, Hutton J, Tuohy J. Reliability of ultrasound estimation of fetal weight in term singleton pregnancies. N Z Med J (Online). 2006;119(1241).
- Ding G, Tian Y, Zhang Y, Pang Y, Zhang JS, Zhang J. Application of A global reference for fetal-weight and birthweight percentiles in predicting infant mortality. BJOG. 2013;120(13):1613–1621. doi:https://doi.org/10.1111/1471-0528.12381.
- Christian P, Murray-Kolb LE, Tielsch JM, Katz J, LeClerq SC, Khatry SK. Associations between preterm birth, small-for-gestational age, and neonatal morbidity and cognitive function among school-age children in Nepal. BMC Pediatr. 2014;14(1):58. doi:https://doi.org/10.1186/1471-2431-14-58.
- Katz J, Lee ACC, Kozuki N, et al. Mortality risk in preterm and small-for-gestational-age infants in low-income and middle-income countries: a pooled country analysis. The Lancet. 2013;382(9890):417–425. doi:https://doi.org/10.1016/S0140-6736(13)60993-9.
- Pallotto EK, Kilbride HW. Perinatal outcome and later implications of intrauterine growth restriction. Clin Obstet Gynecol. 2006;49(2):257–269. doi:https://doi.org/10.1097/00003081-200606000-00008.
- Wang H, Li J, Hao JH, et al. High serum lead concentration in the first trimester is associated with an elevated risk of small-for-gestational-age infants. Toxicol Appl Pharmacol. 2017;332:75–80. " doi:https://doi.org/10.1016/j.taap.2017.07.020.
- Lin S, Hwang SA, Marshall EG, Marion D. Does paternal occupational lead exposure increase the risks of low birth weight or prematurity? Am J Epidemiol. 1998;148(2):173–181. doi:https://doi.org/10.1093/oxfordjournals.aje.a009621.
- Wai KM, Mar O, Kosaka S, Umemura M, Watanabe C. Prenatal heavy metal exposure and adverse birth outcomes in Myanmar: a birth-cohort study. Int J Environ Res Public Health. 2017;14(11):1339. doi:https://doi.org/10.3390/ijerph14111339.
- Zhu M, Fitzgerald EF, Gelberg KH, Lin S, Druschel CM. Maternal low-level lead exposure and fetal growth. Environ Health Perspect. 2010;118(10):1471–1475. doi:https://doi.org/10.1289/ehp.0901561.
- Pourhassan B, Meysamie A, Alizadeh S, Habibian A, Beigzadeh Z. Risk of obstructive pulmonary diseases and occupational exposure to pesticides: a systematic review and meta-analysis. Public Health. 2019;174:31–41.
- Abyadeh M, Djafarian K, Heydarinejad F, Alizadeh S, Shab-Bidar S. Association between apolipoprotein E gene polymorphism and Alzheimer's disease in an Iranian population: a meta-analysis. J Mol Neurosci. 2019;69(4):557–562. doi:https://doi.org/10.1007/s12031-019-01381-1.
- Higgins JPT. GSe. Cochrane Handbook for Systematic Reviews of Interventions Version 5 (0). 2011.
- Abyadeh M, Heydarinejad F, Khakpash M, Asefi Y, Shab-Bidar S. Association of apolipoprotein E gene polymorphism with preeclampsia: a meta-analysis. Hypertens Pregnancy. 2020;39(2):196–197. doi:https://doi.org/10.1080/10641955.2020.1753068.
- Kakavandi NR, Hasanvand A, Ghazi-Khansari M, Sezavar AH, Nabizadeh H, Parohan M. Maternal dietary nitrate intake and risk of neural tube defects: a systematic review and dose-response meta-analysis. Food Chem Toxicol. 2018;118:287–293. doi:https://doi.org/10.1016/j.fct.2018.05.033.
- Berlin JA, Longnecker MP, Greenland S. Meta-analysis of epidemiologic dose-response data. Epidemiology. 1993;218–228.
- Greenland S, Longnecker MP. Methods for trend estimation from summarized dose-response data, with applications to meta-analysis. Am J Epidemiol. 1992;135(11):1301–1309. doi:https://doi.org/10.1093/oxfordjournals.aje.a116237.
- Orsini N, Bellocco R, Greenland S. Generalized least squares for trend estimation of summarized dose–response data. Stata J. 2006;6(1):40–57. doi:https://doi.org/10.1177/1536867X0600600103.
- Durrleman S, Simon R. Flexible regression models with cubic splines. Stat Med. 1989;8(5):551–561. doi:https://doi.org/10.1002/sim.4780080504.
- Chen PC, Pan IJ, Wang JD. Parental exposure to lead and small for gestational age births. Am J Ind Med. 2006;49(6):417–422. doi:https://doi.org/10.1002/ajim.20313.
- Jelliffe-Pawlowski LL, Miles SQ, Courtney JG, Materna B, Charlton V. Effect of magnitude and timing of maternal pregnancy blood lead (Pb) levels on birth outcomes. J Perinatol. 2006;26(3):154–162. doi:https://doi.org/10.1038/sj.jp.7211453.
- Rodosthenous RS, Burris HH, Svensson K, et al. Prenatal lead exposure and fetal growth: Smaller infants have heightened susceptibility. Environ Int. 2017;99:228–233. doi:https://doi.org/10.1016/j.envint.2016.11.023.
- Thomas S, Arbuckle TE, Fisher M, Fraser WD, Ettinger A, King W. Metals exposure and risk of small-for-gestational age birth in a Canadian birth cohort: the MIREC study. Environ Res. 2015;140:430–439. doi:https://doi.org/10.1016/j.envres.2015.04.018.
- Perkins M, Wright RO, Amarasiriwardena CJ, Jayawardene I, Rifas-Shiman SL, Oken E. Very low maternal lead level in pregnancy and birth outcomes in an eastern Massachusetts population. Ann Epidemiol. 2014;24(12):915–919. doi:https://doi.org/10.1016/j.annepidem.2014.09.007.
- Flora G, Gupta D, Tiwari A. Toxicity of lead: a review with recent updates. Interdiscip Toxicol. 2012;5(2):47–58. doi:https://doi.org/10.2478/v10102-012-0009-2.
- Ahamed M, Siddiqui MKJ. Low level lead exposure and oxidative stress: current opinions. Clin Chim Acta. 2007;383(1–2):57–64. doi:https://doi.org/10.1016/j.cca.2007.04.024.
- Hultberg B, Andersson A, Isaksson A. Interaction of metals and thiols in cell damage and glutathione distribution: potentiation of mercury toxicity by dithiothreitol. Toxicology. 2001;156(2–3):93–100. doi:https://doi.org/10.1016/S0300-483X(00)00331-0.
- Klaassen C. 2013. Casarett & Doull's Toxicology: The Basic Science of Poisons. 8th ed. New York, NY: McGraw-Hill Education.