1. Respiratory, Inflammation and Autoimmunity, Pharmaceutical Sciences, R&D, AstraZeneca, Gothenburg, Sweden.
2. Centre for Analysis and Synthesis, Department of Chemistry, Lund University, P.O. Box 124, 221 00 Lund, Sweden.
3. Discovery Sciences, Pharmaceutical Sciences, R&D, AstraZeneca, Gothenburg, Sweden.
4. Division of Biophysical Chemistry, Center for Molecular Protein Science, Department of Chemistry, Lund University, P. O. Box 124, 221 00 Lund, Sweden.