H K Chopra Author

H K Chopra MD
Sr Consultant Cardiologist, Moolchand Medcity, New Delhi, India

Navin C Nanda MD
Professor of Medicine and Cardiovascular Disease; Director, Heart Station/Echocardiography, Laboratories, University of Alabama at Birmingham, Alabama; Director, Echocardiography Laboratory, The Kirklin Clinic, University of Alabama Health Services Foundation, Birmingham, Alabama, USA