1. Chemical Theory and Computation, Department of Chemistry, Lancaster University, Lancaster LA1 4YB U.K.
2. Pharmaceutical and Analytical R&D, Experimental Formulations, AstraZeneca R&D, SE-431 83 Mölndal, Sweden
3. Pharmaceutical Sciences, AstraZeneca, Silk Road Business Park, Macclesfield SK10 2NA, U.K.