Russian Soviet Federated Socialist Republic/Rostov Oblast
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Milyutinskiy Rayon
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Martynovskiy Rayon
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Kamenskiy Rayon
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Dubovskiy Rayon
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Belokalitvenskiy Rayon
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Krasnosulinskiy Rayon
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Rayon Aksayskiy
Radon (diagnosis and treatment) .. in Russian Soviet Federated Socialist Republic Rostov Oblast ...