Acknowledgments
The authors are grateful to the patients for donating their samples for research. Kirsi Autio (HUSLAB, Helsinki, Finland) and Tuija Lundan (TYKSLAB, Turku, Finland) are thanked for providing sample materials from clinical specimens. FIMM Sequencing Lab (Maija Lepistö, Tiina Hannunen, Suvi Kyttänen, Sari Hannula and Aino Palva) are thanked for performing exome and amplicon sequencing experiments. Bioinformatics unit (Henrikki Almusa, Samuli Eldfors and Timo Miettinen) are thanked for executing the exome sequencing and amplicon pipelines.
Potential conflict of interest
Disclosure forms provided by the authors are available with the full text of this article online at https://doi.org/10.1080/10428194.2018.1453067.