@article{whalen_cohen_sumner_mcintosh_1963, 
  title={Hemodynamic Effects of Isoproterenol Infusion in Patients with Normal and Diseased Mitral Valves}, 
  volume={27}, 
  DOI={10.1161/01.cir.27.4.512}, 
  publisher={Ovid Technologies (Wolters Kluwer Health)}, 
  author={WHALEN and COHEN and SUMNER and MCINTOSH}, 
  year={1963}
  }