545,045 NORGREN MARI Genetic organization and biogenesis of Pappili of uropathogenic Escherichia coli : [akademisk afhandling] / Mari Norgeren ; University of Umea. - Umea : Univeristy, 1987. - 170 s. wiele liczb. : il., wykr. ; 24 cm + wkl. [2] s. (Umea University Medical Dissertations, ISSN 0346-6612 ; new ser. no 193)