TY - RPRT TI - A simple method for calculating left ventricular functions from angiographic data using a programmable hand calculator. AU - J H Vogel AU - R D Swenson AU - V Elings PY - 1976 DO - 10.1002/ccd.1810020213 UR - https://pubmed.ncbi.nlm.nih.gov/954077/ ID - 954077 ER -