Elemental Tomography of Cancer-Cell Spheroids Reveals Incomplete Uptake of Both Platinum(II) and Platinum(IV) ComplexesAlderden, Rebecca A.; Mellor, Howard R.; Modok, Szabolcs; Hall, Matthew D.; Sutton, Stephen R.; Newville, Matthew G.; Callaghan, Richard; Hambley, Trevor W. · Journal of the American Chemical Society · 2007