by Levy, H.L, Waisbren, S.E, Lobbregt, D, Allred, E, Leviton, A, Schuler, A, Trefz, F.K, Schwietzer, S.M, Sardharwalla, I.B, Walter, J.H, Barwell, B.E, Berlin, C.M
Published in The Lancet (British edition) (10.12.1994)