David J. Leffell, MD is the David Paige Smith Professor of Dermatology, Plastic Surgery and Otolaryngology and Section Chief of Dermatologic Surgery and Cutaneous Oncology in the D...ver maisDavid J. Leffell, MD is the David Paige Smith Professor of Dermatology, Plastic Surgery and Otolaryngology and Section Chief of Dermatologic Surgery and Cutaneous Oncology in the Department of Dermatology at Yale University School of Medicine, New Haven, Connecticut.ver menos