intestinal polyp造句怎么写

Method:1394 patients with upper gastrointestinal polyp were treated by endoscopic eletrocaugulation rescetion and microwave coagulation.

Objective: To discuss gastrointestinal polyp typing and endoscopic therapy for " small polyp" .

Distribution and relationship of substance P,vasoactive intestinal polypeptide and cholinergic neurons in the intestinal tract of rat