title: Spontaneous pneumomediastinum.
authors.forename: E E
authors.initials: EE
authors.lastname: Conway
mesh_terms: D000293:Adolescent; D003042:Cocaine; D006801:Humans; D008297:Male; D008478:Mediastinal Emphysema / Q000209:etiology*; D019966:Substance-Related Disorders / Q000150:complications; D014636:Valsalva Maneuver
chemical_list: D003042:Cocaine