543,713 HAGBLOM PER DNA [deoxyribonucleic acid] rearrangements and antigenic variation in Neisseria gonorrhoeae: [akademisk avhandling] / by Per Hagblom ; University of Umea. - Umea : University, 1985. - 27 s., 4 prace : il., wykr. ; 21 cm + wkl. [2] s. (Umea University Medical Dissertations, ISSN 0346-6612 ; new ser. nr 138)