Mohs Micrographic Surgery for Melanoma ORIGINAL INVESTIGATION Association Between Hospital Market Concentration and Costs of Laryngectomy Christine G. Gourin, MD, MPH; Peter S. Vosler, MD, PhD; Rajarsi Mandal, MD; et al. Invited Commentary: Using Laryngectomies to Help Voice Concerns About Health Care Databases; Kathryn M. Vorwald, DDS, MD Explaining the Variation in Surgical Practice for Differentiated Thyroid Cancer in Ontario, Canada Stephen F. Hall, MSc, MD, FRCSC; Jonathan C. Irish, MSc, MD, FRCSC; Rebecca J. Griffiths, BSc; et al. Invited Commentary: Redirecting, Without Dampening, the Enthusiasm of Surgeons; Amy Y. Chen, MD, MPH INVITED COMMENTARY Using Laryngectomies to Help Voice Concerns About Health Care Databases Kathryn M. Vorwald, DDS, MD Redirecting, Without Dampening, the Enthusiasm of Surgeons Amy Y. Chen, MD, MPH CLINICAL CHALLENGE Endoscopy Solitary Mucus Cast at the Wharton Duct Orifice Vivek Dokania, MBBS, MS, ENT; Ashutosh Kacker, MBBS, MS, ENT, MD, FACS Earn CME credit TRENDING NOW ON JAMA OTOLARYNGOLOGY—HEAD & NECK SURGERY Hyperbaric Oxygen Therapy vs Medical Therapy for Sudden Sensorineural Hearing Loss Anatomic Distribution of the Morphologic Variation of the Upper Lip Frenulum Among Healthy Newborns Vaping Among Adolescents in the United States Use and Cost of a Hypoglossal Nerve Stimulator Device for Obstructive Sleep Apnea Saline Irrigation and Topical Nasal Steroids