Electrical potential measurements in human breast cancer and benign lesions.
A.A. MARINO, D.M. Morris, M.A. Schwalke, I.G. Iliev & S. Rogers. Tumor Biol. 15: 147–152, 1994. [PDF]

Association between cell membrane potential and breast cancer.
A.A. MARINO, I.G. Iliev, M.A. Schwalke, E. Gonzalez, K.C. Marler & C.A. Flanagan. Tumor Biol. 15: 82–89, 1994. [PDF]