title: Biphasic occurrence of IgM-forming cells in the intestine after oral immunization.
mesh_terms: D000284:Administration, Oral; D000818:Animals; D000917:Antibody Formation; D007611:Aprotinin / Q000494:pharmacology; D002452:Cell Count; D006168:Guinea Pigs; D006821:Hyaluronoglucosaminidase / Q000494:pharmacology; D007114:Immunization; D007075:Immunoglobulin M / Q000096:biosynthesis*; D007275:Injections, Intravenous; D007413:Intestinal Mucosa / Q000166:cytology / Q000187:drug effects / Q000276:immunology*; D007612:Kanamycin / Q000494:pharmacology; D008214:Lymphocytes / Q000276:immunology; D008722:Methods; D013154:Spleen / Q000166:cytology / Q000276:immunology
chemical_list: D007075:Immunoglobulin M; D007612:Kanamycin; D007611:Aprotinin; D006821:Hyaluronoglucosaminidase