%0 Journal Article %T Biomarker assay validation for clinical trials: a questionnaire survey to pharmaceutical companies in Japan | Bioanalysis %A Hiroyuki Kakuo %A Masaaki Kakehi %A Masanari Mabuchi %A Masataka Katashima£¿ %A Noriko Katori %A Ryosuke Nakamura %A Seiji Tanaka %A Takahiro Nakamura %A Takayoshi Suzuki %A Takehisa Matsumaru£¿ %A Yoshiaki Ohtsu£¿ %A Yoshiro Saito %J Bioanalysis %D 2019 %R https://doi.org/10.4155/bio-2018-0257 %U https://www.future-science.com/doi/10.4155/bio-2018-0257