title: Laboratory criteria for the diagnosis of tropical sprue in Puerto Rico.
mesh_terms: D001706:Biopsy; D001856:Bone Marrow Examination; D005492:Folic Acid / Q000097:blood*; D006801:Humans; D007408:Intestinal Absorption; D007583:Jejunum / Q000473:pathology*; D011647:Puerto Rico; D013182:Sprue, Tropical / Q000175:diagnosis* / Q000473:pathology; D014805:Vitamin B 12 / Q000097:blood*; D014994:Xylose
chemical_list: D005492:Folic Acid; D014994:Xylose; D014805:Vitamin B 12