1. Paisey R, Bradshaw P, Hartog M, West P. Br Med J 1979;2:1509.
2. Welch SG, Lancet 1979;1:728.
3. Legg EF, Sammons HG, Lancer 1979;1:1194-5.
4. Worth R, Johnston DG, Anderson J, Alberti KGMM. Lancet 1979;2:742.
5. Korsch BM, Werna ER, Adler R. Pediatrics 1979;64: 379-80. that used by the armed Forces to distinguish work in health centres to be victimised, or