1Professor, RN, Midwife, PhD, Department of Nursing, Jinju Health College, South of Korea.
2Professor, Midwife, PhD Department of Nursing, Nagasaki University, Japan.
3Professor, PhD, Division of Mathematics and Information Statistics, Gyeongsang National University, South of Korea.
4Assistant Professor, Midwife, Department of Nursing, Nagasaki University, Japan.
5Professor, PhD, M.D. Nagasaki University, Japan.
6Lecturer, Midwife, Department of Nursing, Nagasaki University, Japan.
7Assistant Professor, Midwife, Department of Nursing, Nagasaki University, Japan.
8Assistant Professor, Midwife, Department of Nursing, Nagasaki University, Japan.
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