(1) Frank P.M. Kruijver, Jiang-Ning Zhou, Chris W. Pool, Michel A. Hofman, Louis J.G. Gooren, Dick F. Swaab. Male-to-Female Transsexuals Have Female Neuron Numbers in a Limbic Nucleus. Netherlands Institute for Brain Research. The Journal of Clinical Endocrinology & Metabolism. 2000. Vol. 85, No. 5.

(2) Asscheman, Michael Besser, Susan Carr, Domenico di Ceglie, Milton Diamond, Richard Green, Louis Gooren, Frank Kruijver, Joyce Martin, Zoe-Jane Playdon, David Ralph, Terry Reed, Russell Reid, William Reiner, M. Royle, Dick Swaab, Philip Thomas, James Walker, Philip Wilson, Kevan Wylie. Definition and Synopsis of the Etiology of Adult Gender Identity Disorder and Transsexualism. 2002. Gender Identity Research & Education Society, UK.

(3) Alicia Garcia-Falgueras, Dick F. Swaab. A sex difference in the hypothalamic uncinate nucleus: relationship to gender identity. Netherlands Institute for Neuroscience & Institute of the Royal Netherlands Academy of Arts and Sciences. Brain (2008), 131, 3132-3146.

(4) Phoebe Dewing, Tao Shi, Steve Horvath, Eric Vilain. Sexually dimorphic gene expression in mouse brain precedes gonadal differentiation. Department of Human Genetics, University of California, Los Angeles, CA, USA. Molecular Brain Research 118 (2003).

(5) Milton Diamond. Clinical implications of the organizational and activational effects of hormones. University of Hawaii, John A. Burns School of Medicine, Pacific Center for Sex and Society. Hormones and Behavior 55 (2009) 621–632.

(6) Susanne Henningsson, Lars Westberg, Staffan Nilsson, Bengt Lundström, Lisa Ekselius, Owe Bodlund, Eva Lindström, Monika Hellstrand, Roland Rosmond, Elias Eriksson, Mikael Landén. Sex steroid related genes and male-to-female transsexualism. Department of Pharmacology and Institute of Physiology, Göteborg University, Göteborg, Sweden. Department of Neuroscience, Uppsala University, Uppsala, Sweden. Department of Clinical Neuroscience, Section of Psychiatry S:t Göran, Karolinska Institutet, Stockholm, Sweden. Psychoneuroendocrinology (2005) 30, 657-664.

(7) Günter Dörner, Franziska Götz, Wolfgang Rohde, Andreas Plagemann, Rolf Lindner, Hartmut Peters, Zhara Ghanaati. Genetic and Epigenetic Effects on Sexual Brain Organization Mediated by Sex Hormones. Institute of Experimental Endocrinology, Humboldt University Medical School, Berlin, Germany. Institute of Medical Genetics, Humboldt-University Medical School, Germany. 2001.

(8) Lauren Hare, Pascal Bernard, Francisco J. Sánchez, Paul N. Baird, Eric Vilain, Trudy Kennedy, Vincent R. Harley. Androgen Receptor Repeat Length Polymorphism Associated with Male-to-Female Transsexualism. Human Molecular Genetics Laborator, Prince Henry’s Institute of Medical Research; Department of Genetics, Monash University; Centre for Eye Research Australia, University of Melbourne and Royal Victorian Eye and Ear Hospital; Monash Gender Dysphoria Clinic, Moorabbin, Melbourne, Australia; and the Department of Human Genetics, University of California, Los Angeles, California. BIOL PSYCHIATRY 2009; 65:93–96.

(9) Scott P. Kerlin. Prenatal Exposure to Diethylstilbestrol (DES) in Males and Gender-Related Disorderds: Results from a 5-Year Study. DES Sons International Network. International Behavioral Development Symposium 2005. Vancouver, B.C., Canada.

(10) Laura L. Carruth, Ingrid Reisert, Arthur P. Arnold. Sex chromosome genes directly affect brain sexual differentiation. Department of Physiological Science and Laboratory of Neuroendocrinology, Brain Research Institute, University of California, Los Angeles, California 90095, USA. Abteilung Anatomie und Zellbiologie der Universität Ulm, Albert-Einstein-Alle 11, 89081 Ulm, Germany. 2002.

(11) Eva-Katrin Bentz, Lukas A. Hefler, Ulrike Kaufmann, Johannes C. Huber, Andrea Kolbus, Clemens B. Tempfer. A polymorphism of the CYP17 gene related to sex steroid metabolism is associated with female-to-male but not with male-to-female transsexualism. Department of Gynecologic Endocrinology and Reproductive Medicine, Medical University of Vienna, Vienna, Austria. Fertility and Sterility, Volume 90, Issue 1, July 2008, Pages 56-59.

(12) Luders E, Sánchez FJ, Gaser C, Toga AW, Narr KL, Hamilton LS, Vilain E. Regional gray matter variation in male-to-female transsexualism. Department of Neurology, UCLA School of Medicine, Los Angeles, CA 90095-7334, USA. Neuroimage. 2009 Jul 15;46 (4):904-7.

(13) Rametti G, Carrillo B, Gómez-Gil E, Junque C, Segovia S, Gomez A, Guillamon A. White matter microstructure in female to male transsexuals before cross-sex hormonal treatment. A diffusion tensor imaging study. Clinical Institute of Neuroscience, Hospital Clinic i Provincial, Barcelona, Spain; Institute of Biomedical Research August Pi i Sunyer (IDIBAPS), Barcelona, Spain.
J Psychiatr Res. 2010.

(14) Tsuyoshi Baba, Toshiaki Endo, Hiroyuki Honnma, Yoshimitsu Kitajima, Takuhiro Hayashi, Hiroshi Ikeda, Naoya Masumori, Hirofumi Kamiya, Osamu Moriwaka and Tsuyoshi Saito. Association between polycystic ovary syndrome and female-to-male transsexuality. Department of Obstetrics and Gynecology. Department of Psychiatry. Department of Urology, Sapporo Medical University, Sapporo, Hokkaido, Japan and Kamiya Ladies Clinic, Sapporo, Hokkaido, Japan.
Human Reproduction Vol.22, No.4 pages 1011–1016, 2007

(15) Gurney KW. Transsexualism - attitudes in general practice. Supreme Court of Victoria, Australia. Aust Fam Physician. 2010 Apr;39 (4):183.

(16) Alexander Pearlman, Johnny Loke, Cedric Le Caignec, Stefan White, Lisa Chin, Andrew Friedman, Nicholas Warr, John Willan, David Brauer, Charles Farmer, Eric Brooks, Carole Oddoux, Bridget Riley, Shahin Shajahan, Giovana Camerino, Tessa Homfray, Andrew H. Crosby, Jenny Couper, Albert David, Andy Greenfield, Andrew Sinclair and Harry Ostrer. Mutations in MAP3K1 Cause 46,XY Disorders of Sex Development and Implicate a Common Signal Transduction Pathway in Human Testis Determination. American Journal of Human Genetics (AJHG) 2010; 87: 1-7. doi:10.1016/j.ajhg.2010.11.003 - December 2010

(17) Edwina Sutton, James Hughes, Stefan White, Ryohei Sekido, Jacqueline Tan, Valerie Arboleda, Nicholas Rogers, Kevin Knower, Lynn Rowley, Helen Eyre, Karine Rizzoti, Dale McAninch, Joao Goncalves, Jennie Slee, Erin Turbitt, Damien Bruno, Henrik Bengtsson, Vicent Harley, Eric Vilain, Andrew Sinclair, Robin Lovell-Badge and Paul Thomas. Identification of SOX3 as an XX male sex reversal gene in mice and humans. School of Molecular and Biomedical Science and Australian Research Council Special Research Center for the Molecular Genetics of Development, University of Adelaide, Adelaide, Australia. Murdoch Children's Research Institute and Department of Paediatrics, University of Melbourne, Royal Children's Hospital, Melbourne, Victoria, Australia. Division of Developmental Genetics, MRC National Institute for Medical Research, London, United Kingdom. Department of Human Genetics, David Geffen School of Medicine, UCLA, Los Angeles, California, USA. Published December 2010.