TY - JOUR T1 - Cyberspace Chat: When finasteride suddenly stops working—is it counterfeit? JF - International Society of Hair Restoration Surgery SP - 221 LP - 222 DO - 10.33589/23.6.0221 VL - 23 IS - 6 AU - Sharon A. Keene Y1 - 2013/11/01 UR - http://www.ISHRS-HTForum.org/content/23/6/221.abstract ER -