1. Department of Chemistry, The Scripps Research Institute, La Jolla, CA, USA
2. Unidade Corino de Andrade, Centro Hospitalar do Porto, Largo do Prof. Abel Salazar, Porto, Portugal
3. Department of Mathematics, Clarkson University, Potsdam, NY, USA
4. Department of Neurophysiology, Centro Hospitalar do Porto, Largo do Prof. Abel Salazar, Porto, Portugal
5. The Skaggs Institute for Chemical Biology, The Scripps Research Institute, La Jolla, CA, USA