[Electrocardiographical changes after work in persons previously ill of myocardial infarct].
D004562:Electrocardiography; D006801:Humans; D009203:Myocardial Infarction / Q000150:complications*
ELECTROCARDIOGRAPHY; MYOCARDIAL INFARCT/complications
Elektrokardiograficheskie izmeneniia posle raboty u lits, perenesshikh infarkt miokarda.