bibliographicCitation |
Song F, El-Demerdash A, Lee SSH. Screening for multiple phosphodiesterase type 5 inhibitor drugs in dietary supplement materials by flow injection mass spectrometry and their quantification by liquid chromatography tandem mass spectrometry. Journal of Pharmaceutical and Biomedical Analysis. 2012 Nov;70():40–6. doi: 10.1016/j.jpba.2012.05.017. |