1. Department
of Chemistry, University of Hull, Hull HU6 7RX, United Kingdom
2. GSK Consumer Healthcare (U.K.) Ltd., 980 Great West Road, Brentford, Middlesex TW8 9GS, United Kingdom
3. GSK Consumer Healthcare, STF 1N-45, 20 TW Alexander Drive, Research Triangle Park, North Carolina 27709-3398, United States