UMEA UNIVERSITY MEDICAL DISSERTATIONS ; NEW SER. NR 138 543,713 HAGBLOM PER DNA [deoxyribonucleic acid] rearrangements and antigenic variation in Neisseria gonor- rhoeae : [akademisk avhandling] / by Per Hag- blom ; University of Umea. — Umea : Universi-­ ty, 1985. — 27 s., 4 prace : il., wykr. ; 21 cm + wkł.[2] s. (Umea University Medical Dissertations, ISSN 0346—6612 ; new ser. nr 138)