About the Author
Robert S. Porter, MD
Dr Porter earned his MD from Hahnemann University in Philadelphia, PA and completed an Emergency Medicine residency at Mt. Sinai Medical Center in Cleveland, OH. Dr Porter is board certified in Emergency Medicine and is a Fellow of the American College of Emergency Physicians. Since 1983, he has held a variety of clinical and teaching appointments in the Philadelphia area, most recently at Albert Einstein Medical Center and Thomas Jefferson University. He currently works for Merck, where he is editor-in-chief of The Merck Manuals.