- 2004 - - 杏林大学医学部泌尿器科 准教授(助教授)
- 2002 - 2003 Kyorin University Faculty of Medicine
- 2001 - 2002 Kyorin University Faculty of Medicine
- 2001 - 2002 Kyorin University, clinical assistant
- 2002 - - Kyorin University, assistant professor
- 1999 - 2001 テキサス大学サウスウェスタンメディカルセンター研究員
- 1999 - 2001 The university of Texas Southwestern
- 1998 - 1999 Kyorin University Faculty of Medicine
- 1998 - 1999 Kyorin University, clinical assistant
- 1993 - 1994 Kyorin University Faculty of Medicine
- 1993 - 1994 Kyorin University, clinical assistant
- medical center, researcher
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