as there is almost no information about their importance in children with gastrointestinal diseases , we developed highly sensitive radioimmunoassays and measured postprandial serum/plasma levels of gastrin , secretin , vasoactive intestinal polypeptide ( vip ) and motilin in 112 healthy children ( n ) , 28 patients with cystic fibrosis ( cf ) and 17 children with crohn 's disease ( cd ) .
C0017178
gastrointestinal diseases
C0010346
crohn 's disease