title: A skin-testing survey with toxoplasmin on positivity in the different age- and sex groups of the normal urban population of Kaduna (Nigeria).
mesh_terms: D000367:Age Factors; D000941:Antigens; D005260:Female; D006801:Humans; D008297:Male; D009549:Nigeria; D012737:Sex Factors; D012882:Skin Tests; D014122:Toxoplasma / Q000276:immunology*; D014123:Toxoplasmosis / Q000276:immunology; D014505:Urban Population
chemical_list: D000941:Antigens