Colorectal cancer patients show decrease in cellular immunity and enhanced plasma level of transforming growth factor – beta and vascular endothelial growth factor (VEGF). (7th November 2013) - Zavadova, Eva; Michal, Vocka; Bohuslav, Konopasek; Fučíkova, Terezie; Rihova, Blanka; Petruzelka, Luboš