title: [Application of the principle-components method to the analysis of the activities of radiology services in the USSR].
authors.forename: S A
authors.initials: SA
authors.lastname: Daniyelyan
authors.forename: V M
authors.initials: VM
authors.lastname: Tsybulskiy
authors.forename: L P
authors.initials: LP
authors.lastname: Rzhonsnitskaya
authors.forename: E A
authors.initials: EA
authors.lastname: Lyalin
authors.forename: V N
authors.initials: VN
authors.lastname: Zeydlits
mesh_terms: D008722:Methods; D011859:Radiography / Q000639:trends; D011871:Radiology / Q000639:trends*; D011873:Radiology Information Systems; D013223:Statistics as Topic; D014586:USSR
vernacular_title: Application de la méthode des composants principaux à l'analyse de l'activité des services de radiologie d'URSS.