No abstract available
MeSH terms
- Animals
- Animals, Newborn
- Fluorescent Antibody Technique
- Germ-Free Life*
- Histocytochemistry
- Immunoelectrophoresis
- Immunoglobulin G / analysis
- Immunoglobulin M / analysis
- Intestinal Mucosa / immunology
- Intestines / immunology
- Lymph Nodes / immunology
- Lymphoid Tissue / immunology*
- Mice
- Spleen / immunology*
Substances
- Immunoglobulin G
- Immunoglobulin M