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YN has received grant support from Bayer Yakuhin. TW has received honoraria, consulting fees, and\/or grant support from Astellas Pharma, AstraZeneca, Daiichi Sankyo, Fuso Pharmaceutical, Kissei Pharmaceutical, Kyowa Kirin, Mitsubishi Tanabe Pharma, Novartis, Ono Pharmaceutical, and Otsuka Pharmaceutical. TK has received honoraria and\/or consulting fees from Chugai Pharmaceutical, Kissei Pharmaceutical, Kyowa Kirin, Ono Pharmaceutical, Sanwa Kagaku Kenkyusho, and Toray Medical. MF has received honoraria, consulting fees, and\/or grant support from Bayer Yakuhin, Chugai Pharmaceutical, Kissei Pharmaceutical, Kyowa Kirin, Ono Pharmaceutical, and Sanwa Kagaku Kenkyusho. 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