title: Systolic time intervals in Nigerians.
mesh_terms: D000328:Adult; D004562:Electrocardiography; D005260:Female; D006321:Heart / Q000503:physiopathology*; D006801:Humans; D006973:Hypertension / Q000175:diagnosis / Q000503:physiopathology*; D008297:Male; D008875:Middle Aged; D009200:Myocardial Contraction; D009549:Nigeria; D013599:Systole