Erlotinib Inhibits Growth of a Patient-Derived Chordoma Xenograft. - Siu, I-Mei; Ruzevick, Jacob; Zhao, Qi; Connis, Nick; Jiao, Yuchen; Bettegowda, Chetan; Xia, Xuewei; Burger, Peter C.; Hann, Christine L.; Gallia, Gary L. (PLoS ONE, 2013)