Fujita K, Masuo Y, Yamazaki E, Shibutani T, Kubota Y, Nakamichi N, Sasaki Y, Kato Y. Involvement of the transporters P-gp and BCRP in dermal distribution of the multi-kinase inhibitor regorafenib and its active metabolites. J Pharm Sci 106(9): 2632-2641, 2017. ※昭和大学との共同研究