title: Nonimmunoglobulin precipitin lines between intestinal fluids and antisera in immunodiffusion studies: an explanation for their occurrence and how they can be avoided.
mesh_terms: D002918:Chymotrypsin / Q000032:analysis; D004386:Duodenum; D004586:Electrophoresis; D006801:Humans; D007106:Immune Sera; D005779:Immunodiffusion; D007136:Immunoglobulins / Q000032:analysis; D007419:Intestinal Secretions / Q000032:analysis*; D010447:Peptide Hydrolases / Q000032:analysis; D011234:Precipitins / Q000032:analysis; D011506:Proteins / Q000032:analysis*; D014357:Trypsin / Q000032:analysis
chemical_list: D007106:Immune Sera; D007136:Immunoglobulins; D011234:Precipitins; D011506:Proteins; D010447:Peptide Hydrolases; D002918:Chymotrypsin; D014357:Trypsin