Lilenbaum R, Socinski MA, Altorki NK, Hart LL, Keresztes RS, Hariharan S, Morrison ME, Fayyad R, Bonomi P. Randomized phase II trial of docetaxel/irinotecan and gemcitabine/irinotecan with or without celecoxib in the second-line treatment of non-small-cell lung cancer. J Clin Oncol. 2006 Oct 20; 24(30):4825-32.