Antitumor activity of the rapamycin analog CCI-779 in human primitive neuroectodermal tumor/medullablastoma models as single agent and in combination chemotherapy. - Geoerger,B.; Kerr,K.; Tang,C-B.; Fung,K-M.; Powell,B.; Sutton,L.N.; Phillips,P.C. (Cancer Res, 2001)