ACOG Committee Opinion No. 651: Menstruation in Girls and Adolescents: Using the Menstrual Cycle as a Vital Sign. Obstet Gynecol. 2015 Dec;126(6).PMID: 26595586 Read More GynecologyNaomi Whittaker, MDDecember 1, 2015ACOG, Vital Signs, Menstrual Cycle, Full TextComment