Singh Ajay K. Singh, MBBS, FRCP (UK), MBA, Director, Global Programs, Associate Professor of Medicine, Harvard Medical School, And Physician, Renal Division Director, Postgraduate Medical Education Department of Medicine Brigham & Women's Hospital Boston,Massachusetts Joseph Loscalzo, MD, PhD, is Hersey Professor of the Theory and Practice of Physic at Harvard Medical School and Chairman of Medicine at Brigham and Women's Hospital in Boston, Massachusetts. Read More Read Less