1. Cancer Research
UK Cambridge Institute, University of Cambridge, Li Ka Shin Center, Robinson Way, Cambridge CB2 0RE, U.K.
2. Aix-Marseille University, CNRS, ICR, 13007 Marseille, France
3. Department of Electrical Engineering, Center for Hyperpolarization in Magnetic Resonance, Technical University of Denmark, 2800 Kgs., Lyngby, Denmark
4. General Electric Healthcare, HP7 9NA Chalfont St. Giles, U.K.