H-2 Antigens 4 Immunoglobulin G 4 Isoantibodies 4 Mice 4 Mice, Inbred BALB C 4 Spleen 4 animal cell 4 heart 4 immunization 4 mouse 4 nonhuman 4 priority journal 4 Alloimmunization 2 Animal 2 Animals 2 Arachidonic acid metabolites 2 Atrial Function 2 Binding, Competitive 2 Cells, Cultured 2 Colchicine 2 Cyclic AMP 2 Cytochalasin B 2 Heart Atria 2 Lymph Nodes 2 Lymphocytes 2 Major histocompatibility complex 2 Mice, Inbred AKR 2 Mice, Inbred C3H 2 Mice, Inbred C57BL 2 Myocardial Contraction 2