title: ECG of the month. Not to be sneezed at. Sinus node dysfunction.
authors.affiliation: Cardiology Service, Department of Medicine, Texas Tech University Health Sciences Center and Thomason General Hospital, El Paso, Texas, USA.
authors.forename: J I
authors.initials: JI
authors.lastname: Martinez-Lopez
mesh_terms: D004562:Electrocardiography; D006801:Humans; D012804:Sick Sinus Syndrome / Q000175:diagnosis*