Non-iatrogenic pneumomediastinum in infancy and childhood.
D000293:Adolescent; D000367:Age Factors; D001249:Asthma / Q000150:complications; D002037:Bundle-Branch Block / Q000175:diagnosis; D002648:Child; D002675:Child, Preschool; D004562:Electrocardiography; D005260:Female; D006801:Humans; D008297:Male; D008478:Mediastinal Emphysema / Q000000981:diagnostic imaging* / Q000209:etiology; D019838:Neck Injuries; D011859:Radiography; D012141:Respiratory Tract Infections / Q000150:complications; D014947:Wounds and Injuries / Q000150:complications