P344: Characterizing the impact of race, ethnicity, and genotype on heart failure outcomes in nonischemic cardiomyopathy - Cody Kelso; Pooja Nair; Apurv Prabhakar; Kimberly Yee; Irvin Xu; Jeffrey Ding; Fernando Albelo; Eric Adler; Quan Bui; Kimberly Hong (Genetics in Medicine Open)