Жунусова Гульнур Publications in the Digital Repository Association of DCC, MLH1, GSTT1, GSTM1, and TP53 gene polymorphisms with colorectal cancer in Kazakhstan K-ras codon 12 and not TP53 mutations are predominant in advanced colorectal cancers Screening the APC, MLH1, MSH2 and TP53 Mutations in Patients with Early Onset of Colorectal Cancer