Key references: Classification of amenorrhoea
- Gordon CM, Ackerman KE, Berga SL, Kaplan JR, Mastorakos G, Misra M, et al. Functional Hypothalamic Amenorrhea: An Endocrine Society Clinical Practice Guideline. J Clin Endocrinol Metab 2017;102(5):1413–39. https://www.ncbi.nlm.nih.gov/pubmed/28368518
- Practice Committee of American Society for Reproductive Medicine. Current evaluation of amenorrhea. Fertil Steril 2008;90(5 Suppl):S219–25. https://www.ncbi.nlm.nih.gov/pubmed/19007635
- Reindollar RH, Byrd JR, McDonough PG. Delayed sexual development: a study of 252 patients. Am J Obstet Gynecol 1981;140(4):371–80. https://www.ncbi.nlm.nih.gov/pubmed/7246652