Quantitative determination of the calcium channel antagonists amlodipine, lercanidipine, nitrendipine, felodipine, and lacidipine in human plasma using liquid chromatography-tandem mass spectrometry

1. Baranda, A.B.
2. Mueller, C.A.
3. Alonso, R.M.
4. Jiménez, R.M.
5. Weinmann, W.