title: Cyclic nucleotide activity in gastrointestinal tissues and fluids.
mesh_terms: D000818:Animals; D001646:Bile / Q000032:analysis*; D002852:Chromatography, Ion Exchange; D003106:Colon / Q000032:analysis; D000242:Cyclic AMP / Q000032:analysis* / Q000097:blood; D006152:Cyclic GMP / Q000032:analysis* / Q000097:blood; D004064:Digestive System / Q000032:analysis*; D004285:Dogs; D005750:Gastric Juice / Q000032:analysis*; D005753:Gastric Mucosa / Q000032:analysis; D006801:Humans; D007082:Ileum / Q000032:analysis; D007583:Jejunum / Q000032:analysis; D008297:Male; D008722:Methods; D009928:Organ Specificity; D010189:Pancreatic Juice / Q000032:analysis*; D010727:Phosphoric Diester Hydrolases; D051381:Rats; D013045:Species Specificity; D013270:Stomach / Q000032:analysis
chemical_list: D000242:Cyclic AMP; D010727:Phosphoric Diester Hydrolases; D006152:Cyclic GMP