Affiliation: | a Institute of Bioorganic Chemistry, Byelorussian Academy of Sciences, 220141 Minsk, Zhodinskaya 5, Byelorussia, USSR b Department of Biophysics, Institute of Experimental Physics, University of Warsaw, Zwirki i Wigury 93, 02-089, Warsaw, Poland c Tampere University Hospital, Department of Clinical Chemistry, P.O. Box 2000, SF-33521, Tampere, Finland |