title: The incidence of lymphocytotoxin in blood serum of pregnant and multipara women.
mesh_terms: D003601:Cytotoxicity Tests, Immunologic; D005260:Female; D006801:Humans; D008214:Lymphocytes / Q000276:immunology*; D011247:Pregnancy; D011259:Pregnancy Tests, Immunologic; D013997:Time Factors