Acknowledgements

The present study was conducted according to the authorization released to Dr. Lorenzo Calvi by Ministero della Salute (SP/065, protocol number) for the supply and detention of narcotic drugs and/or psychotropic substances for scientific purposes. The present paper is partially funded and realised within the project ITALIAN MOUNTAIN LAB, Ricerca e Innovazione per l'ambiente ed. i Territori di Montagna—Progetto FISR Fondo integrativo speciale per la ricerca.
