Effect of intestinal flora on megaenteron of mice.
D000818:Animals; D004926:Escherichia coli / Q000472:pathogenicity; D004927:Escherichia coli Infections / Q000209:etiology; D005260:Female; D005856:Germ-Free Life; D007044:Hysterectomy; D007420:Intestine, Large / Q000382:microbiology* / Q000473:pathology; D008297:Male; D051379:Mice