Impact of the year 2000 Medicare policy change on older patient enrollment to cancer clinical trials.
Unger JM, Coltman CA, Crowley JJ, Hutchins LF, Martino S, Livingston RB, Macdonald JS, Blanke CD, Gandara DR, Crawford ED, Albain KS. Impact of the year 2000 Medicare policy change on older patient enrollment to cancer clinical trials. J Clin Oncol. 2006 Jan 01; 24(1):141-4.