Department of Medical Informatics and Statistics;
Niigata University Graduate School of Medicine;
Niigata;
Japan;
Department of Emergency and Critical Care Medicine;
Niigata City General Hospital;
Niigata;
Japan;
Development Center of Medical Professionals for Next-Generation;
Niigata University Hospital;
Niigata;
Japan;
Patient and Family Support Center;
Niigata City General Hospital;
Niigata;
Japan;
Older; People; Emergency; Healthcare; System; Japan; Long-Term; Care; Staffing; Problems;