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Sandra Petralia, PhD, is an accomplished oncology professional with extensive experience in medical affairs and science liaison roles across various leading organizations. Currently serving as Principal Oncology Medical Science Liaison at Gilead Sciences since September 2021, Sandra has held key positions at MEI Pharma as both Director and Field Director of Medical Affairs until February 2024, and at Clovis Oncology as Principal and Senior Medical Science Liaison. Previous roles include Interim Regional Associate Director of MSLs and Senior Medical Science Liaison at Seattle Genetics, Vice President and Medical Director at Cline Davis and Mann, and Senior Medical Science Liaison at Amgen. Earlier career highlights include positions as a Clinical Scientist at Purdue Pharma L.P. and a Medical Leader at Roche. Sandra obtained a Doctor of Philosophy (Ph.D.) from the University of Buffalo, Roswell Park Cancer Institute.