Cyclocreatine Transport by SLC6A8, the Creatine Transporter, in HEK293 Cells, a Human Blood-Brain Barrier Model Cell, and CCDSs Patient-Derived Fibroblasts. - Uemura T; Ito S; Masuda T; Shimbo H; Goto T; Osaka H; Wada T; Couraud PO; Ohtsuki S (Pharmaceutical research, 2020)