By Jeffrey Bernstein, Ph.D., Susan Magee
By Gotz Aly, Michael Sontheimer, Shelley Frisch, Ph.D.
By John Briggs, Ph.D., David F Peat
By Kathleen A. Sluka, Ph.D.
By Richard A Spears, Ph.D.
By Hunter S. Thompson, Douglas Brinkley, William J. Kennedy, Ph.D., PE
By PH D Cheryl Dellasega, Ph.D., PH D Charisse Nixon
By Richard Walker, Ph.D.
By Bernard F Cleveland, Ph.D.
By Nathaniel Branden, Ph.D.
By Guideposts, Robert T Teske, Ph.D.
By Walter A Elwell, Ph.D., Dr Peter Toon
By david williams, Ph.D.
By Thomas phelan, Thomas W. Phelan, Ph.D.
By Rueben P Job, Norman Shawchuck, Ph.D.
By John O'Donohue, Ph.D.
By Jeannette Ewin, Ph.D., D.F. Horrobin
By Gary Chapman, Ph.D.
By Lily Chou, Norman G. Link, Ph.D.
By Colin Beard, John P. Wilson, Ph.D.
By Michael Newton, Ph.D.
By Mary L. Trump, Ph.D.
By Prof. Cedric Watts, M.A., Ph.D.
By Jean Houston, Ph.D.
By Dr. Henry Cloud, Ph.D., John Townsend
By Roger Ellis, M.A., Ph.D.
By Dr Leonard Sweet, Ph.D., Karen Ingle