Department of Elderly Internal Medicine;
Cangzhou Central Hospital;
Cangzhou Clinical Medical School of Hebei Medical University;
Cangzhou 061001;
Hebei Province;
China;
Department of Third Neurology;
Cangzhou Central Hospital;
Cangzhou Clinical Medical School of Hebei Medical University;
Cangzhou 061001;
Hebei Province;
China;
Department of First Digestion;
Cangzhou Central Hospital;
Cangzhou Clinical Medical School of Hebei Medical University;
Cangzhou 061001;
Hebei Province;
China;
Department of Second Digestion;
Cangzhou Central Hospital;
Cangzhou Clinical Medical School of Hebei Medical University;
Cangzhou 061001;
Hebei Province;
China;