1. Northwestern University, Evanston, Illinois, United States
2. Argonne National Laboratory, Lemont, Illinois, United States
3. Istituto di Scienze e Tecnologie Molecolari del CNR (CNR-ISTM), Perugia, Italy
4. University of Wisconsin, Madison, Wisconsin United States
5. Hanyang University, Seoul, Republic of Korea
6. University of Notre Dame, Notre Dame, Indiana, United States