by Gove, S, Pio, A, Campbell, H, Cattaneo, A, Redd, StephenC, Rodman, AnneE, Thinyane, Gertrude, Doherty, J.F, Dijkhuizen, M.A, Wieringa, F.T, Moule, N, Golden, M.H.N, Mulholland, E.Kim, Simoes, EricA.F
Published in The Lancet (British edition) (07.12.1991)