%0 Journal Article %T Serum potassium in elderly heart failure patients as a predictor of readmission within 1year %A Shang, Gechu %A Gao, Yan %A Liu, Kewei %A Wang, Xiaoyong %J Heart and Vessels %V 38 %N 4 %P 507-516 %@ 0910-8327 %D 2023-04-01 %I Springer Japan %~ DeepDyve