tokens: AIMS : To establish a baseline and intraindividual fluctuations of the tumour markers CEA , CA 50 and CA 242 in patients cured from colorectal cancer , and to test the hypothesis that serum concentrations and intraindividual fluctuations do not differ from the concentrations in cancer-free individuals .
folded_tokens: aim : to establish a baseline and intraindividual fluctuation of the tumour marker CEA , CA 50 and CA 242 in patient cure from colorectal cancer , and to test the hypothesis that serum concentration and intraindividual fluctuation do not differ from the concentration in cancer-free individual .