By United States Pharmacopoeial Convention
By British Pharmacopoeia Commission
By Tom Quinn
By Brian Underdahl, Ed Willett
By Diamant, Anita
By Alan Isaacs
By Nitza Rosovsky, Joy Ungerleider-Mayerson
By Tom Butler-Bowdon
By The Economist
By Lee Allane
By Paw, Henry G. W., Park, Gilbert R., Priestley, George S., McManus, Elizabeth
By Mosby
By Jane Matthews
By David R. Lide (National Institute of Standards & Technology (Retired), Gaithersburg, Maryland, USA)
By G.R.R. Treasure
By Shawn Brecka
By Choundas, George
By Daniel R. Mishell
By Harper Collins Publishers
By Williams, Gareth, Pickup, John C.
By H. E. Reiss (Honorary Consultant Obstetrician and Gynaecologist, Honorary Consultant Obstetrician and Gynaecologist, Homerton Hospital, London)
By Michael J. Baker
By Glenn D. Considine, Peter H. Kulik
By Esmond Harris
By MacGregor, Wilkinson