Comparison of patients with benzodiazepine receptor agonist‐related psychiatric disorders and over‐the‐counter drug‐related psychiatric disorders before and after the COVID‐19 pand... by Takashi Usami, Kyoji Okita, Takuya Shimane, Toshihiko Matsumoto

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The influence of tightening regulations on patients with new psychoactive substance‐related disorders in Japan by Yuko Tanibuchi, Toshihiko Matsumoto, Daisuke Funada, Takuya Shimane

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The relationship between severity of drug problems and perceived interdependence of drug use and sexual intercourse among adult males in drug addiction rehabilitation centers in Ja... by Risa Yamada, Takuya Shimane, Ayumi Kondo, Masako Yonezawa, Toshihiko Matsumoto

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Parental drinking according to parental composition and adolescent binge drinking: findings from a nationwide high school survey in Japan by Satoshi Inoura, Takuya Shimane, Kunihiko Kitagaki, Kiyoshi Wada, Toshihiko Matsumoto

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Sex differences in the characteristics of stimulant offenders with a history of substance use disorder treatment by Ayumi Kondo, Takuya Shimane, Masaru Takahashi, Michiko Kobayashi, Marie Otomo, Yoshiko Takeshita, Toshihiko Matsumoto

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Risk factors for the onset of dependence and chronic psychosis due to cannabis use: Survey of patients with cannabis‐related psychiatric disorders by Toshihiko Matsumoto, Toshitaka Kawabata, Kyoji Okita, Yuko Tanibuchi, Daisuke Funada, Maki Murakami, Takashi Usami, Rie Yokoyama, Nobuya Naruse, Yuzo Aikawa, Aizo Furukawa, Chie Komatsuzaki, Nozomu Hashimoto, Osamu Fujita, Aiko Umemoto, Ariyuki Kagaya, Takuya Shimane

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