Sitaphaisith Ekachampaka. (1994) Some characteristics of a protein-coated ODS column and its use for the determination of drugs by the direct injection analysis of plasma samples. Mahidol University,:ม.ป.ท.Sitaphaisith Ekachampaka. 1994. Some characteristics of a protein-coated ODS column and its use for the determination of drugs by the direct injection analysis of plasma samples. ม.ป.ท.:Mahidol University,;Sitaphaisith Ekachampaka. Some characteristics of a protein-coated ODS column and its use for the determination of drugs by the direct injection analysis of plasma samples. ม.ป.ท.:Mahidol University, 1994. Print.