Institution: | aDepartment of Engineering Sciences, Ångström Laboratory, Uppsala University, P.O. Box 534, SE-751 21 Uppsala, Sweden bDepartment of Oncology, Radiology and Clinical Immunology, Rudbeck Laboratory, University Hospital, SE-751 85 Uppsala, Sweden cDepartment of Analytical Chemistry, Biomedical Centre, Uppsala University, P.O. Box 599, SE-751 24, Uppsala, Sweden |