Demin, V A [Use of systems approach to solving regional problems of renewal of the stock of ultrasound scanners (the case of the Smolensk Region)]. [electronic resource] - Meditsinskaia tekhnika - 37-41 p. digital Publication Type: Comparative Study; Journal Article ISSN: 0025-8075 Subjects--Topical Terms: HumansModels, TheoreticalQuality of Health CareRussiaTime FactorsUltrasonography--instrumentation