title: Letter: Vitamin B12 malabsorption in chronic pancreatitis.
mesh_terms: D001826:Body Fluids / Q000201:enzymology; D002908:Chronic Disease; D002918:Chymotrypsin / Q000032:analysis; D003037:Cobalt Radioisotopes; D004386:Duodenum / Q000201:enzymology; D006801:Humans; D007408:Intestinal Absorption; D010195:Pancreatitis / Q000378:metabolism*; D014357:Trypsin / Q000032:analysis; D014805:Vitamin B 12 / Q000378:metabolism* / Q000652:urine
chemical_list: D003037:Cobalt Radioisotopes; D002918:Chymotrypsin; D014357:Trypsin; D014805:Vitamin B 12