title: Non-appearance of injected fibroblast interferon in circulation.
mesh_terms: D004622:Embryo, Mammalian / Q000166:cytology; D005260:Female; D005347:Fibroblasts; D006801:Humans; D007273:Injections, Intramuscular; D007372:Interferons / Q000008:administration & dosage / Q000097:blood*; D007962:Leukocytes; D011247:Pregnancy
chemical_list: D007372:Interferons