Determining Safe Excision Limits in FUE: Factors That Affect, and a Simple Way to Maintain, Aesthetic Donor Density

Sharon A. Keene, MD, FISHRS (drkeene{at}hairrestore.com) 1. Tucson, Arizona, USA 2. William R. Rassman, MD 1. Los Angeles, California, USA 3. James A. Harris, MD, FISHRS 1. Denver, Colorado, USA ### Overharvesting and difficulties measuring variables affecting donor coverage