To my parents, Madan and Gulab, for giving me life; To my in-laws, Rikhab and Ratan, for adding to my life; To my wife, Renu, who is my life, and, to my children, Nikita and Sahil, who show me how to enjoy life.
This book is specially dedicated to the faculty, staff, and leadership of the Columbia University Vagelos College of Physicians and Surgeons, and the NewYork–Presbyterian Hospital—who everyday demonstrate their commitment and passion to the highest level of patient care, research, and education.