By Scott C. Anderson, John F. Cryan, Ph.D, Ted Dinan, M.D.
By Don Peppers, Martha Rogers, Ph.D
By Mona Lisa Schulz, MD, Ph.D
By KIM YOUNG-CHUL, Ph.D
By Richard Muther, Ph.D
By Ph.D, Raye Lynne Dippel PH.D., Hutton, J. Thomas M.D.
By Mark W. Zemansky, Ph.D
By Tal Benshahar, Ph.D
By Juanita Brown, Ph.D, David Isaacs, The World Cafe Community
By Bart D. Ehrman, Ph.D
By R.P martin, M.A, Ph.D
By Michael B. Foster M.A., Ph.D