Serial AMH measurements in (A) adolescent subjects with 2 ovulatory cycles, with each cycle centered to the mid-cycle LH peak (day 0), and (B) adolescents with either 0, 1, or 2 ovulatory cycles presented by cycle day (where cycle day 1 represents the first day of menses). Adolescent data are presented over a backdrop of normative data from 32 historic adult controls during an ovulatory cycle. Adult data are shown as a solid black line (mean) ± 1 SD (shaded area). “1” in (B) indicates data points from the 1 adolescent outlier.