title: NITROGEN CONTENT AND DRY WEIGHT OF THE GASTROINTESTINAL TRACT IN THE RAT.
mesh_terms: D000375:Aging; D001065:Appendix; D001835:Body Weight; D055598:Chemical Phenomena; D002621:Chemistry; D041981:Gastrointestinal Tract; D007420:Intestine, Large; D007421:Intestine, Small; D008099:Liver; D009584:Nitrogen; D051381:Rats; D012106:Research; D013270:Stomach
chemical_list: D009584:Nitrogen
keywords: AGING; APPENDIX; BODY WEIGHT; CHEMISTRY; EXPERIMENTAL LAB STUDY; INTESTINE, LARGE; INTESTINE, SMALL; LIVER; NITROGEN; RATS; STOMACH