156. Does Vansant's method facilitate the learning of Hill's technique? C. Gautier-Benoit (Lille)
157. Are the functional sequelae of Hill's operation associated with the constraint imposed on the cardia? S.J.M. Kraemer (Munich), LD. Hill (Seattle)
158. The results of Hill's operation LD. Hill, S.J.M. Kraemer, C.E. Pope, RA. Kozarek (Seattle)