Polymer Chemistry and Biomaterials Research Group, Ghent University, Krijgslaan 281, Building S4 Bis, B-9000 Ghent, Belgium, Department of Geology and Soil Science, Ghent University, Krijgslaan 281, Building S8, B-9000 Ghent, Belgium, Department of Subatomic and Radiation Physics, Ghent University, Proeftuinstraat 86, B-9000 Ghent, Belgium, and Laboratory of Pharmaceutical Technology, Ghent University, Harelbekestraat 72, B-9000 Ghent, Belgium(2007-01-05時点)