P298: Decoding ambiguity: Evaluating the psychological harms and utility of returning cancer variants of uncertain significance - Jordan Sam; Chloe Mighton; Emma Reble; Salma Shickh; Marc Clausen; Rita Kodida; Daena Hirjikaka; Sonya Grewal; Seema Panchal; Melyssa Aronson; Kara Semotiuk; Susan Armel; et al. (Genetics in Medicine Open)