Figure 2
From: Menstrual function among women exposed to polybrominated biphenyls: A follow-up prevalence study

Distribution of menstrual cycle length, Michigan Female Health Study, 1997–1998
From: Menstrual function among women exposed to polybrominated biphenyls: A follow-up prevalence study
Distribution of menstrual cycle length, Michigan Female Health Study, 1997–1998