The development of serum proteins and humoral immunity in opossum "embryos".
D000818:Animals; D000831:Animals, Newborn; D000906:Antibodies / Q000032:analysis; D000917:Antibody Formation; D001435:Bacteriophages / Q000276:immunology; D001798:Blood Proteins / Q000032:analysis*; D002499:Centrifugation, Density Gradient; D003126:Colostrum; D004140:Dinitrophenols; D006241:Haptens; D007114:Immunization; D007122:Immunoelectrophoresis; D007074:Immunoglobulin G / Q000032:analysis; D007075:Immunoglobulin M / Q000032:analysis; D007136:Immunoglobulins; D009500:Neutralization Tests; D009893:Opossums / Q000254:growth & development*
D000906:Antibodies; D001798:Blood Proteins; D004140:Dinitrophenols; D006241:Haptens; D007074:Immunoglobulin G; D007075:Immunoglobulin M; D007136:Immunoglobulins