PLOD1 and polycystic ovary syndrome: The selection of the study subjects relied on self-reported health condition, and thus the abnormally high values of FSH and LH seen in 30 and 10 participants, respectively, can be explained by undiagnosed or asymptomatic condition (including PCOS) [28], contribution of modifying factors (especially smoking) [29], status (and days) of the menstrual cycle, and varied assay conditions.