Published studies on the frequency of the MSI or MMR-defective phenotype in Pancreatic Ductal Adenocarcinoma.

*Tumor specimens passed through xeno-transplantation of PDAC, unspecified whether consecutively collected.#By genomic DNA analysis for mutations.§Medullary cancers selected out of 450 randomly chosen PDAC.“One patient with positive Bethesda criteria but negative hMLH1 mutational analysis.°3 PDAC arising in LS patients added to a series of 100 patients, unspecified whether consecutive.∧Long survivors (≥3 years) selected out of 373 PDAC patients.