1. Section of Receptor Biology and Signaling, Department of Physiology and Pharmacology, Karolinska Institutet, S17165 Stockholm, Sweden.
2. Department of Biochemistry and Molecular Medicine, Institute for Research in Immunology and Cancer, University of Montréal, Montréal, QC H3C 3J7, Canada.
3. Institute of Pharmacology and Toxicology, University of Würzburg, Versbacher Strasse 9, 97078 Würzburg, Germany.
4. Institute for Molecular Cell Biology, CMB-Center for Molecular Biomedicine, University Hospital Jena, Friedrich-Schiller University Jena, Hans-Knöll-Strasse 2, 07745 Jena, Germany.
5. Institute for Pharmaceutical Biology, University of Bonn, 53115 Bonn, Germany.
6. Science for Life Laboratory, Department of Cell and Molecular Biology, Uppsala University, P.O. Box 596, SE-751 24 Uppsala, Sweden.
7. Department of Medicine, Research Institute of the McGill University Health Center, McGill University, Montréal, QC H4A 3J1, Canada.
8. Department of Pharmacology and Therapeutics, McGill University, Montréal, QC H3G 1Y6, Canada.