Serum gamma-globulin and lymphoid tissue in the germfree rats.
D000818:Animals; D004586:Electrophoresis; D005856:Germ-Free Life; D007106:Immune Sera; D008221:Lymphoid Tissue / Q000166:cytology; D008297:Male; D051381:Rats; D005719:gamma-Globulins
D007106:Immune Sera; D005719:gamma-Globulins