title: Natural anti-spleenic precipitins in human blood.
mesh_terms: D000328:Adult; D000368:Aged; D001323:Autoantibodies / Q000032:analysis*; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D008875:Middle Aged; D009928:Organ Specificity; D011234:Precipitins / Q000032:analysis; D011247:Pregnancy; D013154:Spleen / Q000276:immunology*
chemical_list: D001323:Autoantibodies; D011234:Precipitins