Imatinib plasma levels during successful long-term treatment of metastatic-gastrointestinal stromal tumors

Akira Sawaki, Kazuki Inaba, Satoshi Nomura, Hiroshi Kanie, Tomonori Yamada, Katsumi Hayashi, Makoto Okawaki, Masahiro Yamamura, Yoshiyuki Yamaguchi, Toshihiro Hirai, Etsuro Orito