Michiko Kumon, Mitsuhide Tanimoto, Atsutoshi Ito, Hideki Yano, Kazuhiro Inoue, Shuichi Yada and Hidemi Minami
Formulation Technology Research Laboratories, Daiichi Sankyo Co., Ltd., 1-2-58, Hiromachi, Shinagawa-ku, Tokyo 140-8710, Japan