1. Department of Emergency MedicineShonan Kamakura General Hospital KamakuraJapan
2. Department of GastroenterologyShonan Kamakura General Hospital KamakuraJapan
3. Department of Intensive Care MedicineShonan Kamakura General Hospital KamakuraJapan
4. Department of Infection Control Shonan Kamakura General Hospital Kamakura Japan