title: [Preliminary investigation on toxoplasmosis in Beijing District (author's transl)].
mesh_terms: D000328:Adult; D000818:Animals; D002681:China; D003168:Complement Fixation Tests; D005260:Female; D006801:Humans; D008297:Male; D051379:Mice; D008875:Middle Aged; D012698:Serologic Tests; D014123:Toxoplasmosis / Q000453:epidemiology* / Q000276:immunology