TY - GEN AU - Rappaport,I TI - Changing secretion patterns of background plaque-forming cells as a function of age SN - 0547-6844 PY - 1978///0508 KW - Aging KW - Animals KW - Antibody-Producing Cells KW - immunology KW - Antigens KW - Cell Survival KW - Erythrocytes KW - Female KW - Half-Life KW - Hemolytic Plaque Technique KW - Male KW - Mice KW - Sheep KW - blood KW - Spleen KW - cytology N1 - Publication Type: Journal Article; Research Support, U.S. Gov't, P.H.S ER -