1. Department of NEUROFARBA, Sezione di Farmaceutica e Nutraceutica; Università degli Studi di Firenze; Via Ugo Schiff 6 Sesto Fiorentino 50019 Italy
2. Department of Microbiology and Immunology; Montana State University; Bozeman Montana 59717
3. Department of Chemistry; Imperial College London; South Kensington London SW7 2AZ United Kingdom
4. Institute of Chinese Medical Sciences; University of Macau; Macau China