- Klein DA, et al. Amenorrhea: A systematic approach to diagnosis and management. American Family Physician. 2019; https://www.aafp.org/afp/2019/0701/p39.html. Accessed Dec. 17, 2020.
- Goldman L, et al., eds. Reproductive endocrinology and infertility. In: Goldman-Cecil Medicine. 26th ed. Elsevier; 2020. https://www.clinicalkey.com. Accessed Dec. 17, 2020.
- Kellerman RD, et al. Amenorrhea. In: Conn's Current Therapy 2021. Elsevier; 2021. https://www.clinicalkey.com. Accessed Dec. 17, 2020.
- AskMayoExpert. Primary amenorrhea. Mayo Clinic; 2020.
- AskMayoExpert. Secondary amenorrhea. Mayo Clinic; 2020.
- Gordon CM, et al. Functional hypothalamic amenorrhea: An Endocrine Society clinical practice guideline. Journal of Clinical Endocrinology and Metabolism. 2017; doi:10.1210/jc.2017-00131.