title: [Comparative titration of pneumococcic sera and determination of their persistence in vivo and in vitro].
authors.forename: D I
authors.initials: DI
authors.lastname: OSTROVSKAYA
mesh_terms: D006801:Humans; D007106:Immune Sera; D066298:In Vitro Techniques; D013296:Streptococcus pneumoniae
chemical_list: D007106:Immune Sera
keywords: PNEUMOCOCCI/antiserum