LJUNGGREN ELISABETH 303,863 FIRST First International Conference on Pelvic Girdle Relaxation Tromso, Norway, 5-8 August 1990/ eds. Odd Kogstad, Elisabeth Ljunggren, Jon Helge Hansen. -Stockholm : Almqvist and Wiksell Periodical.1 1991. - 24 s. : wykr ; 24 cm (Scandinavian Journal of Rheumatology, ISSN 0301-3847 , suppl. 88)