extracts of the proximal third of the duodenum from 8 antrectomized dogs with the gastrointestinal continuity restored by gastroduodenostomy ( n = 4 ) or gastrojejunostomy ( n = 4 ) as well as from 4 unoperated controls were subjected to gel chromatography .
C0013303
duodenum
C0399839
gastrojejunostomy