*Kazuko Tada^1,2, Hitomi Osako², Kyosuke Nakano³, Takamasa Ishigaki¹, Atsushi Kuroki¹, Tadashi Miyamoto¹ (1. Department of Medical Information Management, Hyogo Prefectural Amagasaki General Medical Center, 2. Department of nursing, Hyogo Prefectural Amagasaki General Medical Center, 3. Department of Medical Information Management, Hyogo Prefectural Harima-Himeji General Medical Center)