@misc{indiciae7e735e7aaeb5, title = {Application of restricted access material (RAM) with precolumn-switching and matrix solid-phase dispersion (MSPD) to the study of the metabolism and pharmacokinetics of Verapamil.}, author = {Markus Walles and Jürgen Borlak and Karsten Levsen}, year = {2002}, doi = {10.1007/s00216-002-1614-2}, url = {https://pubmed.ncbi.nlm.nih.gov/12474082/}, note = {Source identifier: 12474082} }