The Journal of Clinical Endocrinology and Metabolism. The Endocrine Society. 85 (5): 2034–41. doi:10.1210/jcem.85.5.6564. ISSN 0021-972X. PMID 10843193. Archived from the original on 6 February 2007. Retrieved 25 February 2007. Rathus, Spencer A.; Jeffery S. Nevid, Lois Fichner-Rathus (2002). Human Sexuality in a World of Diversity. Allyn & Bacon. ISBN 978-0-205-40615-9. OCLC 55502508. Schreiber, Gerhard (2016). Transsexuality in Theology and Neuroscience. Findings, Controversies, and Perspectives (in German). Walter de Gruyter. ISBN 978-3-11-044080-5. OCLC 962412457.
Pepper, Shanti M.; Lorah, Peggy (2008). "Career Issues and Workplace Considerations for the Transsexual Community: Bridging a Gap of Knowledge for Career Counselors and Mental Health Care Providers". The Career Development Quarterly. Wiley. 56 (4): 330–343. doi:10.1002/j.2161-0045.2008.tb00098.x. ISSN 0889-4019. ProQuest 219546491. External links

The International Journal of Transgenderism – The Official Journal of the World Professional Association for Transgender Health (formerly HBIGDA). An archive of IJT Volumes I through V is available, as are several books on transsexualism, including Harry Benjamins The Transsexual Phenomenon
Blepharospasm is any abnormal contraction of the orbicularis oculi muscle. The condition should be distinguished from the more common, and milder, involuntary quivering of an eyelid, known as myokymia, or fasciculation. In most cases, blepharospasm symptoms last for a few days and then disappear without treatment, but in some cases the twitching is chronic and persistent, causing life-long challenges. In these cases, the symptoms are often severe enough to result in functional blindness. The persons eyelids feel like they are clamping shut and will not open without great effort. People have normal eyes, but for periods of time are effectively blind due to their inability to open their eyelids. In contrast, the reflex blepharospasm is due to any pain in and around the eye. It is of two types: essential and reflex blepharospasm. The benign essential blepharospasm (BEB) is a focal dystonia—a neurological movement disorder involving involuntary and sustained contractions of the muscles around the eyes. The term essential indicates that the cause is unknown, but fatigue, stress, or an irritant are possible contributing factors. Blepharospasm is sometimes part of benign fasciculation syndrome. Although there is no cure, botulinum toxin injections may help temporarily. A surgical procedure known as myectomy may also be useful. BEB is a fairly rare disease, affecting only one in every 20,000 people in the United States. The word is from Greek: βλέφαρον / blepharon, eyelid, and σπασμός / spasmos, spasm, an uncontrolled muscle contraction.