Hart PC, Chiyoda T, Liu X, Weigert M, Curtis M, Chiang CY, Loth R, Lastra R, McGregor SM, Locasale JW, Lengyel E, Romero IL. SPHK1 Is a Novel Target of Metformin in Ovarian Cancer. Mol Cancer Res. 2019 04; 17(4):870-881.