TY - RPRT TI - Quantitative two dimensional echocardiography during bicycle exercise in normal subjects. AU - W Zwehl AU - P Gueret AU - S Meerbaum AU - D Holt AU - E Corday PY - 1981 DO - 10.1016/0002-9149(81)90187-9 UR - https://pubmed.ncbi.nlm.nih.gov/7211702/ ID - 7211702 ER -