In December 2015, the American Academy of Pediatrics endorsed the following publication: American College of Obstetricians and Gynecologists. Committee Opinion No. 651. Menstruation in girls and adolescents: using the menstrual cycle as a vital sign. Obstet Gynecol. 2015;126(6):e143–e146. Available at: http://www.acog.org/-/media/Committee-Opinions/Committee-on-Adolescent-Health-Care/co651.pdf?dmc=1&ts=20151124T1701404887
All statements of endorsement from the American Academy of Pediatrics automatically expire 5 years after publication unless reaffirmed, revised, or retired at or before that time.