By American College of Sports Medicine
By Eugene D. McGahren, William G. Wilson
By Jackie Marshall, Jackie Marshall
By Fontaine RN MSN, Karen Lee
By Donaldson, R.J., Donaldson, L.J.
By Dukes, H. H
By Gudrun Arnadottir MA BMROT
By Shirley R. Burke
By Charles A. Jacobi
By Rod R. Seeley, Trent D. Stephens
By Gary A. Thibodeau
By Depoy, Elizabeth, Gitlin, Laura N.
By Ivan Damjanov MD PhD, James Linder MD
By Muir III DVM PhD, William W., Hubbell DVM MS DACVA, John A. E., Skarda DVM PhD, Roman T., Bednarski DVM MS, Richard M.
By P. Prithvi Raj MD
By Schramm, Professor Gunter, Warford, Professor Jeremy
By Elise Hancock
By Sid Gilman (author) & Sarah Winans Newman (author)
By Peter Trower, Andrew Casey, Windy Dryden, Trower, Peter, Casey, Andrew, Dryden, Windy
By Emmy van Deurzen
By Scott, Michael J., Stradling, Stephen G.
By Alexander P. Spence, Elliott B. Mason
By Elaine N. Marieb, Marieb, Elaine N.
By Hoffmann, Stephen A.
By Meidinger, Werner
By Frohlich, Hans Horst
By Pamela Mason