A gas chromatography/mass spectrometry method for the determination of sildenafil, vardenafil and tadalafil and their metabolites in human urine
2010 ◽
Vol 24
(11)
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pp. 1697-1706
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2012 ◽
Vol 50
(3-4)
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pp. 1019-1026
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2011 ◽
Vol 49
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pp. 365-369
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2015 ◽
Vol 53
(7)
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pp. 1037-1043
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2003 ◽
Vol 985
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pp. 147-157
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1985 ◽
Vol 1
(5-6)
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pp. 387-393
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2014 ◽
Vol 18
(6)
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pp. 1181-1190
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2004 ◽
Vol 802
(2)
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pp. 307-315
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