By Anthony Stevens
By Rosemary Caddy
By Ingrid Kurz
By Andrew Sceats
By Joe Griffin, Ivan Tyrrell
By Joan Radford
By Marin Kollef, Warren Isakow
By Jordan B. Peterson
By diana webster, Victoria Webster
By Alan A. Grant, J.R. Heath, O.F. McCord
By Lee M. Silver
By Malcolm Dixon, Karen Smith
By Don Fawcett, Ronald Jensh
By J. J. R. Frausto da Silva (, Professor of Analytical Chemistry, Instituto Superior Tecnico, Universidad Tecnicia de Lisboa), R. J. P. Williams (, Emeritus Professor of Chemistry, University of Oxford)
By John Swain, Sally French
By Unnamed
By Charles Seiger
By Karen Jacobs, Laela Jacobs
By Gurcharan S. Rai, Graham P. Mulley
By Jones, Richard M.
By David Grundy
By Mike Walsh
By American College of Sports Medicine
By Nigel Palastanga, etc., Derek Field (Vice Principal, North London School of Physiotherapy, London), Roger Soames (Senior Lecturer in Anatomy, King's college, University of London)
By Amy Myers, M.D.
By Albert Ellis, Raymond Chip Tafrate
By Sue Hutchings, Jayne Comins, Judy Offiler
By Antony Williams
By British Pharmacopoeia Commission
By Philip Wiffen, Marc Mitchell, Melanie Snelling, Nicola Stoner