Cooperative study on cardiac catheterization. Percutaneous left ventricular puncture.
D000328:Adult; D001919:Bradycardia / Q000209:etiology; D006328:Cardiac Catheterization / Q000009:adverse effects*; D005260:Female; D006352:Heart Ventricles / Q000601:surgery*; D006470:Hemorrhage / Q000209:etiology; D006801:Humans; D008297:Male; D008722:Methods; D008875:Middle Aged; D011677:Punctures