- 2001 - 2003 八女中央病院副院長
- 2003 - - 国大医療福祉大学大学院 教授
- 1995 - 2001 Kyushu University School of Medicine
- 1991 - 1995 Kyushu University School of Medicine
- 1991 - -
- 1987 - 1990 University of California, Los Angeles
- 1987 - 1990 University of California at Los Angeles, visiting Professor
- 1985 - 1990 Saga Medical School
- 1980 - 1984 Oita Medical University
- 1978 - 1980 Kyushu University School of Medicine
- International University of Health and Welfare Professor
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