1. Environmental NMR Centre, University of Toronto, Toronto, Ontario M1C 1A4, Canada
2. Bruker BioSpin AG, Industriestrasse 26, Fällanden 8117, Switzerland
3. Bruker BioSpin GmbH, Rudolf-Plank-Str. 23, 76275 Ettlingen, Germany
4. Bruker Corporation, 15 Fortune Drive, Billerica, Massachusetts 01821-3991, USA