Department of Internal Medicine, Hebei Medical University,Shijiazhuang, Hebei 050017, China;
Department of Internal Medicine, Hebei Medical University,Shijiazhuang, Hebei 050017, China;
Department of Cardiology, Tangshan Worker's Hospital, Tangshan,Hebei 063000, China;
Medical Research Center, Hebei United University, Tangshan,Hebei 063000, China;
Department of Obstetrics, Beijing Fangshan District Maternal and Child Health Hospital, Beijing 100000, China;
Department of Cardiology, Affiliated Hospital of Jiamusi University, Jiamusi, Heilongjiang 154000, China;
Department of Internal Medicine, Hebei Medical University,Shijiazhuang, Hebei 050017, China;
Medical Research Center, Hebei United University, Tangshan,Hebei 063000, China;