title: [Electrocardiogram of the month].
authors.affiliation: Klinika Kardiologii CMKP, Warszawa, Poland.
authors.forename: Ewa
authors.initials: E
authors.lastname: Makowska
authors.forename: Joanna
authors.initials: J
authors.lastname: Rezler
mesh_terms: D000368:Aged; D001282:Atrial Flutter / Q000150:complications* / Q000175:diagnosis*; D004562:Electrocardiography; D006801:Humans; D006973:Hypertension / Q000150:complications*; D008297:Male; D012720:Severity of Illness Index