DR. ANDRÉ GUAY is director of the Center for Sexual Function Lahey Clinic in Peabody, Mass., and a clinical assistant professor of medicine at Harvard University Medical School in Boston. He has received grant and research support from Auxilium Pharmaceuticals and Cellegy Pharmaceuticals Inc., and serves on the speaker's bureaus and advisory boards of Auxilium, Cellegy, Procter & Gamble, and Solvay.