Discordant DNA mismatch repair protein status between synchronous or metachronous gastrointestinal carcinomas: frequency, patterns, and molecular etiologies

Monika Vyas; Canan Firat; Jaclyn F. Hechtman; Martin R. Weiser; Rona Yaeger; Chad Vanderbilt; Jamal K. Benhamida; Ajaratu Keshinro; Liying Zhang; Peter Ntiamoah; Marco Gonzalez; Rebecca Andrade; Imane El Dika; Arnold J. Markowitz; J. Joshua Smith; Julio Garcia-Aguilar; Efsevia Vakiani; David S. Klimstra; Zsofia K. Stadler; Jinru Shia