R.R. Gordon
Wayne State University
S. Campbell
University of Sheffield
C. Scott Russell
Stanford University
Mary Lucas
University College London
C. E. Blank
Universität Ulm
H. P. Ferreira
Queen Charlotte's and Chelsea Hospital
EDMOND B. DE KOOS
Queen Charlotte's and Chelsea Hospital
J. Pryse‐Davies
Hammersmith Hospital
D Blakey
Oklahoma State Department of Health
Ian F. Sommerville
University of London