1. Department of Molecular Physiology, Leiden Institute of Chemistry, Leiden University, Einsteinweg 55, 2333 CC, Leiden, Netherlands.
2. Department of Chemical Physiology, The Scripps Research Institute, La Jolla, CA 92037, USA.
3. Department of Psychiatry, Erasmus University Medical Centre, 3000 CA, Rotterdam, Netherlands.
4. Analytical Biosciences, Leiden Academic Centre for Drug Research, Leiden University, Einsteinweg 55, 2333 CC, Leiden, Netherlands.
5. Endocannabinoid Research Group, Institute of Biomolecular Chemistry, Consiglio Nazionale delle Ricerche (CNR), Via Campi Flegrei 34, Comprensorio Olivetti, 80078 Pozzuoli, Italy.
6. Department of Experimental Medicine and Surgery, Tor Vergata University of Rome, Via Montpellier 1, 00133 Rome, Italy.
7. Department of Neuroscience, Erasmus Medical Centre, 3000 CA, Rotterdam, Netherlands.
8. Department of Bio-organic Synthesis, Leiden Institute of Chemistry, Leiden University, Einsteinweg 55, 2333 CC, Leiden, Netherlands.
9. Toxys B.V., Robert Boyleweg 4, 2333 CG, Leiden, Netherlands.
10. Netherlands Institute for Neuroscience, Royal Dutch Academy of Arts and Sciences, 1105 BA, Amsterdam, Netherlands.
11. European Centre for Brain Research–Institute for Research and Healthcare (IRCCS) Santa Lucia Foundation, Via del Fosso del Fiorano 65, 00143 Rome, Italy.
12. Department of Medicine, Campus Bio-Medico University of Rome, Via Alvaro del Portillo 21, 00128 Rome, Italy.