By OKERMAN
By Curran, R.C.
By Gilles, Alan
By Various Authors
By Roy Meadow, Jacqueline Mok, Donna Rosenberg
By David Goldsmith, Satishkumar Jayawardene, Penny Ackland
By Chamberlain, Geoffrey, Morgan, Margery
By Chamberlain, Geoffrey, etc., Gibbings, Charlotte R., Dewhurst, Sir
By Hearn, Julie
By Scottish Home & Health Dept
By Smith, P. G., Morrow, Richard H.
By Ridgeway, G.L, Wren, M, Stokes, D.E
By Johnson, Gordon J., Weale, Robert, Minassian, Darwin C.
By Woodrow, Philip
By Abbatt, Fred, McMahon, Rosemary
By Scriven, Angela, Orme, Judy
By Mitchell, David R., Brown, Roy Irwin
By Moullin, .
By Katz, Jeanne, Peberdy, Alyson, Sidell, Moyra
By Katz, Jeanne, Peberdy, Alyson, Douglas, Jenny
By Sidell, Moyra, Douglas, Jenny
By Open University
By NHSU
By Warren, Kenneth S., Mahmoud, Adel A. F.
By Hendrickse
By Unidentified Author
By Mackie, T.J., McCartney, J.E., Cruickshank, Robert, etc.
By World Health Organization(WHO)
By D. C. Shanson