title: [Experimental formation of secondary nodules in the thymus of rats].
mesh_terms: D000315:Adrenalectomy; D000818:Animals; D002369:Castration; D006632:Histamine / Q000494:pharmacology; D008297:Male; D010567:Pertussis Vaccine; D051381:Rats; D011919:Rats, Inbred Strains; D013950:Thymus Gland / Q000166:cytology* / Q000276:immunology
chemical_list: D010567:Pertussis Vaccine; D006632:Histamine