Linderberg, Mats; Hellberg, Sven; Bjoerk, Susanna; Gotthammar, Birgitta; Hoegberg, Thomas; Persson, Kerstin; Schwarcz, Robert; Luthman, Johan; Johansson, Rolf
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Aktiebolaget Astra; Cornell Research Foundation, Inc.; The University of Maryland at Baltimore
Patent: US5523475 A1, 1996 ;
US 5523475 A