title: [Research designs in rheumatology in the pediatric institutions of the USSR for 1981].
mesh_terms: D000047:Academies and Institutes; D010372:Pediatrics / Q000639:trends*; D012107:Research Design; D012219:Rheumatology / Q000639:trends*; D014586:USSR
vernacular_title: O plane nauchnykh issledovaniĭ po probleme "Revmatologiia" v pediatricheskikh uchrezhdeniiakh SSSR na 1981 g.