1. Laboratory for Biological and Medical Mass Spectrometry, Uppsala University, P.O. Box 583 Biomedical Centre, SE-75123 Uppsala, Sweden, Department of Pharmaceutical Biosciences, Uppsala University, P.O. Box 591 Biomedical Centre, SE-751 24 Uppsala, Sweden, Department of Physiology and Pharmacology, Karolinska Institute, SE-171 77 Stockholm, Sweden, Department of Medicinal Chemistry, Division of Analytical Pharmaceutical Chemistry, P.O. Box 574 Biomedical Centre, SE-751 23 Uppsala, Sweden, Mass...