Liquid chromatographic determination of theophylline concentration with syringe-type minicolumns for direct plasma injection.
Homma
M
M
Oka
K
K
Takahashi
N
N
D000328:Adult; D002853:Chromatography, Liquid / Q000379:methods; D006801:Humans; D008297:Male; D013806:Theophylline / Q000097:blood*
D013806:Theophylline