1. Thermo Fisher Scientific, West Palm Beach, Florida 33401, United States
2. Barnett Institute of Chemical and Biological Analysis, Department of Chemistry and Chemical Biology, Northeastern University, Boston, Massachusetts 02115, United States
3. Thermo Fisher Scientific, Neuhofstrasse 11, 4153 Reinach, Switzerland
4. Thermo Fisher Scientific, Stafford House, 1 Boundary Park, Hemel Hempstead HP2 7GE, United Kingdom