Evaluation of a soluble tetrazolium/formazan assay for cell growth and drug sensitivity in culture using human and other tumor cell lines - Scudiero,D.A.; Shoemaker,R.H.; Paull,K.D.; Monks,A.; Tierney,S.; Nofziger,T.H.; Currens,M.J.; Seniff,D.; Boyd,M.R. (Cancer Research, 1988)