title: A teenage boy with weakness and syncope.
authors: Division of Emergency Medicine, The Children's Hospital of Philadelphia, Philadelphia, PA, USA. prusakowski@email.chop.edu
authors: Melanie K
authors: MK
authors: Prusakowski
mesh_terms: D000293:Adolescent; D002249:Carbon Monoxide Poisoning / Q000175:diagnosis*; D003937:Diagnosis, Differential; D004562:Electrocardiography; D006801:Humans; D008297:Male; D018908:Muscle Weakness / Q000175:diagnosis / Q000209:etiology; D013575:Syncope / Q000175:diagnosis / Q000209:etiology