TY - RPRT TI - Age-associated decrease in ventricular response to haemodynamic stress during beta-adrenergic blockade. AU - F C Yin AU - G S Raizes AU - T Guarnieri AU - H A Spurgeon AU - E G Lakatta AU - N J Fortuin AU - M L Weisfeldt PY - 1978 DO - 10.1136/hrt.40.12.1349 UR - https://pubmed.ncbi.nlm.nih.gov/737093/ ID - 737093 ER -