Fig. 2From: Assisted reproductive technology represents a possible risk factor for development of epimutation-mediated imprinting disorders for mothers aged ≥ 30 yearsThe proportion of ART-conceived livebirths in the general population and that in patients with epi-IDs. Blue dots indicate the proportion of ART-conceived livebirths in patients with epi-IDs with actual numbers. a Between 1992 and 2017. Black dots represent the proportion of ART-conceived livebirths in the general population. b Between 2007 and 2017. Black dots indicate the proportion of ART-conceived livebirths in the general population of maternal age ≥ 30 years. ART, assisted reproductive technology; epi-IDs, epimutation-mediated imprinting disordersBack to article page