By Eugene D. McGahren, William Wilson
By Frank B. Walsh, William Fletcher Hoyt
By Jerry L. Northern, Marion Downs
By US Preventive Services Task Force
By Larry Waterbury
By Mark Peakman MBBS PhD FRCPath Professor, Diego Vergani MD PhD FRCPath FRCP, Peakman MBBS PhD FRCPath Professor, Mark, Vergani MD PhD FRCPath FRCP, Diego
By Currie
By Leonard S. Jacob
By M.Evelyn McNeill
By Barbara Fadem, Steven Simring
By Scott H. Plantz
By ACSM
By Ronald W. Dudek
By R. Bruce Wilcox
By Brent A. Reinheimer
By Andrew Weir
By Angus Deaton
By Richard Swanson, Betty Spears
By Jan A. Pechenik
By John W. Kimball
By Scott K. Powers, Edward T. Howley, Powers, Scott K., Howley, Edward T.
By James H. Cyriax
By George A. Hay, Donald J. Hughes
By C.S. Ward, Ward, C.S.
By E.W. Anderson, Anderson, E.W., Sims, Andrew
By P. E. C. Manson-Bahr MD FRCP DTM&H, D. R. Bell MB ChB FRCP MFCM DTM&H