By Farrar, W.Edmund, Lambert, Harold P.
By Arie J. Zuckerman, J.E. Banatvala, J.R. Pattison (University College and Middlesex School of Medicine, London, UK)
By Shepherd, Dr Richard
By Gwendolyn R.W. Burton, Paul G. Engelkirk
By Andrew J. Pollard, George H. McCracken Jr., Adam Finn
By Stanley L. Robbins, Ramzi S. Cotran
By Leslie Collier, John Oxford, Paul Kellam