156. Does Vansant's method facilitate the learning of
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