USA

• Dr. Eugene Shippen, M.D.
  Author, "The Testosterone Syndrome"
  
  Phone: 610-777-7896
  
  Shillington Diagnostic Center
  9 E. Lancaster Avenue
  Shillington, PA
  USA
  19607
  
  
  
• Dr. John Crisler, D.O.
  Director, All Things Male - Center for Men's Health
  http://www.allthingsmale.com
  
  Phone: 517-485-4424
  Fax: 815-301-2716
  Email: This e-mail address is being protected from spambots. You need JavaScript enabled to view it
  
  320 - 322 West Ottawa, Garden Level
  Lansing, Michigan
  USA
  48933
  
  
  
• Dr Irwin Goldstein, M.D.
  Urologist & Director, Sexual Medicine, Alvarado Hospital, San Diego, California
  http://www.sandiegosexualmedicine.com
  
  Phone: 619-265-8865
  Fax: 619-265-7696
  Email: This e-mail address is being protected from spambots. You need JavaScript enabled to view it
  
  6719 Alvarado Road
  Suite 108
  San Diego, California
  USA
  92120
  
  
  
• Dr. Michael Irwig, M.D., F.A.C.E.
  Endocrinologist & Assistant Professor of Medicine, George Washington University School of Medicine
  Director, Center for Andrology
  http://www.gwdocs.com/1184733129220.html
  
  Phone: 202-741-2489
  Fax: 202-741-2490
  
  2150 Pennsylvania Ave NW
  # ACC 3-416
  Washington DC 20037
  USA
  
  
  
• Alan Jacobs, M.D.
  Neuroendocrinologist focused on brain/memory/neurosteroids
  http://www.neuroendocrinology.org/
  
  Phone: (212) 888-0002
  Fax: (212) 888-1899
  Email: This e-mail address is being protected from spambots. You need JavaScript enabled to view it
  
  120 East 56th Street
  Suite 1040
  New York, NY 10022
  USA
  
  359 East Main Street
  Suite 3B
  Mount Kisco, NY 10549
  USA

UK

• Professor / Dr. Pierre-Marc Bouloux
  Endocrinologist, BSc(hons) MBBS(hons) MRCS LRCP MD FRCP
  http://www.thelondonclinic.co.uk/consultants/bouloux,_professor_pierre-marc.aspx
  
  Phone: 020 7616 7790
  Fax: 020 7616 7791
  Email: This e-mail address is being protected from spambots. You need JavaScript enabled to view it
  
  The London Clinic
  Consulting Rooms
  5 Devonshire Place
  London W1G 6HL
  
  

Europe

• Dr Thierry Hertoghe
  http://www.hertoghe.eu
  
  Phone: + 32 2 736 68 68
  Fax: + 32 2 732 57 43
  
  7-9 avenue van Bever
  B-1180
  Brussels
  Belgium