Bentz, E; Hefler, L; Kaufmann, U; Huber, J; Kolbus, A; Tempfer, C (2008). «A polymorphism of the CYP17 gene related to sex steroid metabolism is associated with female-to-male but not male-to-female transsexualism». Fertility and Sterility90 (1): 56–9. doi:10.1016/j.fertnstert.2007.05.056. PMID17765230.
Οι εκπρόσωποι του Σωματείου Αλληλεγγύης Τραβεστί - Transsexual Ελλάδος προς τον υπουργό Δημόσιας Τάξης [1]
nih.gov
ncbi.nlm.nih.gov
Bentz, E; Hefler, L; Kaufmann, U; Huber, J; Kolbus, A; Tempfer, C (2008). «A polymorphism of the CYP17 gene related to sex steroid metabolism is associated with female-to-male but not male-to-female transsexualism». Fertility and Sterility90 (1): 56–9. doi:10.1016/j.fertnstert.2007.05.056. PMID17765230.