Y. Kouno

Simple and accurate high-performance liquid chromatographic method for the measurement of three antiepileptics in therapeutic drug monitoring.

K. Oka, M. Homma, C. Ishikura, 1993, Journal of chromatography.

Direct sample injection into the high-performance liquid chromatographic column in theophylline monitoring

K. Oka, M. Homma, N. Takahashi, 1990 .

Simple and accurate determination of methylpyrazines in biofluids using high-performance liquid chromatography.

K. Oka, M. Homma, M. Kanai, 1991, Journal of Chromatography A.