27.10.2003
A randomized trial of aspirin to prevent colorectal adenomas in patients with previous colorectal cancer
R.S. Sandler, S. Halabi, J.A. Baron, S. Budinger, E. Paskett, R. Keresztes, N. Petrelli, J.M. Pipas, D.D. Karp, C.L. Loprinzi, G. Steinbech, R. Schilsky
The New England Journal of Medicine, 2003; 348: 883-890