Takashi Kawaguchi1
, Satoru Iwase2
, Hironori Takeuchi1
, Ayako Ikeda3
, Yujiro Kuroda2
, Naoko Sakata2
, Megumi Umeda3
, Kaori Kobara3
, Tadaharu Matsunaga4
, Sakae Unezaki1
and Yoshinori Nagumo3 
1
Department of Practical Pharmacy, School of Pharmacy, Tokyo University of Pharmacy & Life Sciences, 1432-1 Horinouchi, Hachioji-city, Tokyo, Japan
2
Department of Palliative Medicine, The University of Tokyo Hospital, 7-3-1 Hongo, Bunkyo-ku, Tokyo, Japan
3
Nagumo Clinic, 1-11-2 Ohsaki, Shinagawa-ku, Tokyo, Japan
4
Department of Breast Diseases, Tokyo Medical University Hachioji Medical Center, 1163 Tatemachi, Hachioji-city, Tokyo, Japan