290,769 WALLGREN - PETTERSSON CARINA Congenital nemaline myopathy : a longitudinal study : academic dissertation / by Carina Wallgren-Petters- son ; University of Helsinki. - Helsinki : University, 1990. - 102 s. : il. ; 26 cm (Commentationes Physico-Mathematicae ; 111. Disser­ tation ; nr 30)