Affiliation: | (1) Department of Mathematics, University of British Columbia, V6T 1Z2 Vancouver, BC, Canada;(2) Hagedorn Research Institute, Niels Steensens Vej 6, DK-2820 Gentofte, Denmark;(3) Department of Chemistry, Southern Methodist University, 75275-0314 Dallas, TX, USA;(4) Department of Biomathematics, MD Anderson Cancer Center, 77030 Houston, TX, USA |