Effect of the number of antigens on the quantity of cells producing several kinds of antibody.
D000818:Animals; D000917:Antibody Formation; D004731:Endotoxins / Q000494:pharmacology*; D007114:Immunization; D008198:Lymph Nodes / Q000187:drug effects* / Q000502:physiology; D051381:Rats; D012475:Salmonella; D012760:Shigella
D004731:Endotoxins