title: [Study of the 1st lead of the electrocardiogram. Practical clinical applications. (Apropos of 45 cases)].
mesh_terms: D000293:Adolescent; D000328:Adult; D001167:Arteritis / Q000175:diagnosis*; D003327:Coronary Disease / Q000175:diagnosis*; D004374:Ductus Arteriosus, Patent / Q000175:diagnosis*; D004562:Electrocardiography; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged
vernacular_title: Etude de la dérivee première de l'électocardiogramme. Applications pratiques en clinique. (A propos de 45 observations)