Japan/Niigata
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Tsubame Shi
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Tōkamachi-shi
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Shibata Shi
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Santō-gun
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Sanjō Shi
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Sado Shi
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Ojiya-shi
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Nishikanbara-gun
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Niigata Shi
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Nagaoka Shi
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Mitsuke Shi
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Kitakambara-gun
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Kashiwazaki Shi
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Kamo Shi
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Jōetsu Shi
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Iwafune-gun
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Higashikambara-gun
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Gosen Shi
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Myoko-shi
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Minamikanbara-gun
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Minamiōnuma-gun
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Nakaōnuma-gun
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Kariwa-gun
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Murakami Shi
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Itoigawa Shi
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Agano Shi
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Uonuma Shi
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Minamiuonuma Shi
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Tainai Shi
Radon (diagnosis and treatment) .. in Japan Niigata ...