Quercetin Suppresses Drug-Resistant Spheres via the p38 MAPK–Hsp27 Apoptotic Pathway in Oral Cancer CellsSu-Feng Chen(China Medical University), Yaoh‐Shiang Lin(Chung Shan Medical University)PLoS ONENovember 12, 201210.1371/journal.pone.0049275Cited by 110SaveCiteExport RISWatch citationsRelated PapersNonadhesive Culture System as a Model of Rapid Sphere Formation with Cancer Stem Cell Properties|PLoS ONE|2012|157