550,537 BJÖRK ERIK Starch microspheres as a nasal delivery system for drugs :[doctoral thesis] / by Erik Björk. - Uppsala :Academiae Ubsaliensis, 1993. - 51 s. i il., wykr. ; 24 cm (Acta Universistatis Upsaliensis Comprehensive Summaries of Uppsala Dissertations from the Faculty of Pharmacy. ISSN 0282-7484 ; 103) ISBN 91-554-3032-5