1. The Maas Clinic, San Francisco, Calif (Drs Sidle, Loos, Ramirez, and Maas); Division of Facial Plastic Surgery, Department of Otolaryngology, University of California at San Francisco (Drs Sidle, Loos, Ramirez, Kabaker, and Maas); Contra Costa Facial Plastic Surgery, Walnut Creek, Calif (Dr Loos); and Aesthetic Facial Plastic Surgery Medical Clinic, Oakland, Calif (Dr Kabaker).