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['gi ']
its always such a pleasure to listen to the veteran gi oncologist dr. john marshall. his writings, unparalleled wit, eloquence , spontaneity and uncanny grasp of the subject makes for an awesome experience. #wcgic2023 
Medical Oncologist & Hematologist • @AKUGlobal & @PennStHershey Alum • Adjunct Clinical Associate Professor @KhalifaUni • LGP ESMO Asia 22 • SSMC/Mayo Clinic •