BACKGROUND
the present study evaluates genetic polymorphisms of three glutathione S-transferases (GSTM1, GSTT1and GSTP1) in patients with synchronous malignant colorectal tumors and the association of synchronous colorectal cancers with other cancers.
MATERIAL AND METHODS
from 420 patients with a colorectal cancer admitted to our hospital between 2005-2012, we selected for genetic analysis 20...
