By Tortora, Gerard J., Funke, Berdell R., Case, Christine L.
By Leslie Collier, John Oxford, Paul Kellam
By R. G. Board
By Kenneth M. Murphy (Washington Univ. School of Medicine, St. Louis), Casey Weaver (University of Alabama at Birmingham, School of Med)
By David G. Nicholls (Buck Institute, Novato, California, U.S.A.), Stuart J. Ferguson (University of Oxford, U.K.)
By Beeching MD, Nicholas J.
By A. P. Ball, J. A. Gray
By Lilian E. Hawker, Alan H. Linton
By Thomas D. Brock, etc., Michael T. Madigan, Michael T. Madigan (Southern Illinois University, USA)
By Alan J. Cann (Senior Lecturer, Department of Microbiology and Immunology, University of Leicester, UK)
By Andrew Scott
By Stephen Curran, Christopher Williams