Caroline A. Macera, Ph.D. is a Professor of Epidemiology at the Graduate School of Public Health at San Diego State University. Dr. Macera has more than thirty years experience teaching epidemiology, and has published extensively in the field of epidemiology and public health.
Dr. Richard Shaffer is a Professor of Epidemiology at the Graduate School of Public Health at San Diego State University. He has taught epidemiology to undergraduate, graduate, and doctoral students for thirteen years.