Reiner WG (2002). "Gender identity and sex assignment: a reappraisal for the 21st century". Adv. Exp. Med. Biol. Advances in Experimental Medicine and Biology. 511: 175–89, discussion 189–97. doi:10.1007/978-1-4615-0621-8_11. ISBN978-1-4613-5162-7. PMID12575762.
Reiner WG (2002). "Gender identity and sex assignment: a reappraisal for the 21st century". Adv. Exp. Med. Biol. Advances in Experimental Medicine and Biology. 511: 175–89, discussion 189–97. doi:10.1007/978-1-4615-0621-8_11. ISBN978-1-4613-5162-7. PMID12575762.