id author title date pages extension mime words sentence flesch summary cache txt 1831cj84k0j Xin Liu Evaluation of Therapeutics in Three Dimensional Cell Culture Systems Using Mass Spectrometry 1904 .txt text/plain 207 8 24 However, limited methodologies result in incomplete evaluation of the distribution of many anticancer drugs and their metabolites. Three-dimensional (3D) cell cultures have served as an important model system and have contributed to valuable assays in drug discovery studies. cache/1831cj84k0j.txt txt/1831cj84k0j.txt