https://clinicalepigeneticsjournal.biomedcentral.com/articles/10.1186/s13148-017-0423-6
https://clinicalepigeneticsjournal.biomedcentral.com/articles/10.1186/s13148-017-0422-7
https://clinicalepigeneticsjournal.biomedcentral.com/articles/10.1186/s13148-017-0421-8
https://clinicalepigeneticsjournal.biomedcentral.com/articles/10.1186/s13148-017-0424-5