By Nuri N. Mohsenin
By Jordan, C.C., Oehme, P.
By Hegarty, Seamus, etc.
By Grandjean, E., OLROYD, H.
By Reading, Hugo F.
By Taylor, David, Paton, Dr. Carol, Kerwin, Robert
By Dawber, Rodney P. R., etc., Colver, Graham, Jackson, Arthur
By Shaw, Robert W.
By Yorkston, Kathryn M., etc.
By Bernstein, Basil
By Spilios Argyropolous, Sam Forshall, David Nutt
By Alain Gilbert, Alain C Masquelet
By Gerald Wiseman
By Ray Desmond
By Dawn J. Wright, Darius J. Barlett
By Nadine B Carozzi
By Jackson
By H. J. Dyos, Michael Wolff
By G. Chamberlain, A. Wraight
By Monica J. Taylor
By Jay L. Lemke
By Basil Bernstein, Julia Brannen
By R. Baird, Sally F. Bloomfield (London School of Hygiene, Cheshire, UK)
By Hanne Hjorth Tonnesen (University of Oslo, Norway)
By Raymond G. Daniloff