Internationally renowned hair transplant surgeon Dr. Craig L. Ziering, of Beverly Hills, is past president and diplomate of AOCD. Founder and medical director of Ziering Medical, he is an author, educator and researcher in the field of hair restoration. His surgical techniques include the Ziering Whorl, Tunnel Technique and the Sneak-Peek Long Hair Transplant, and he is on advisory boards for Merck, Histogen, Lexington International and Apira Science.