About the Authors

John M. McPartland

mcpruitt@myfairpoint.net

Affiliations GW Pharmaceuticals, Porton Down Science Park, Salisbury, Wiltshire, United Kingdom, Department of Family Medicine, University of Vermont, Burlington, Vermont, United States of America

Geoffrey W. Guy

Affiliation GW Pharmaceuticals, Porton Down Science Park, Salisbury, Wiltshire, United Kingdom

Vincenzo Di Marzo

Affiliation Endocannabinoid Research Group, Istituto di Chimica Biomoleculare, CNR, Via Campi Flegrei, Pozzuoli, Napoli, Italy

Competing Interests

We have the following interests. This study was partly funded by GW Pharmaceuticals. John McPartland has received research grants from GW Pharmaceuticals and serves on its scientific advisory board. Geoffrey Guy is CEO of GW Pharmaceuticals, and Vincenzo DiMarzo has received research grants from GW Pharmaceuticals and serves as a research consultant. There are no patents, products in development or marketed products to declare. This does not alter our adherence to all the PLOS ONE policies on sharing data and materials, as detailed online in the guide for authors.

Author Contributions

Conceived and designed the experiments: JM GWG VD. Performed the experiments: JM GWG VD. Analyzed the data: JM GWG VD. Contributed reagents/materials/analysis tools: JM GWG VD. Wrote the paper: JM GW VD.