[Changes of the electrocardiogram in first and second stage hypertension before and after health resort therapy].
D004562:Electrocardiography; D006294:Health Resorts; D006801:Humans; D006973:Hypertension / Q000628:therapy*
ELECTROCARDIOGRAPHY; HEALTH RESORTS; HYPERTENSION/therapy
Ob izmeneniiakh elektrokardiogrammy u bol'nykh gipertonicheskoi bolezn'iu I-II stadii po i posle kurortnogo lechenila.