title: The effect of cardiostimulating and cardiodepressive substances on systolic time intervals.
mesh_terms: D000328:Adult; D002317:Cardiovascular Agents / Q000494:pharmacology*; D003327:Coronary Disease / Q000503:physiopathology; D006801:Humans; D009200:Myocardial Contraction / Q000187:drug effects*; D013599:Systole / Q000187:drug effects*
chemical_list: D002317:Cardiovascular Agents