542,114 NYHLIN HENRY Crohn's disease with special reference to intestinal malabsorption : a clinical study based on patients from Nothern Sweden : /akademisk avhandlinig/ / H. Nyhlin ; Umea Universitet. - Umea : Norrlands-Tryck, 1984. - 93, [1] s., [2 prace] : il., wykr. ; 21 cm + wkł. /2/ s. (Umea University Medical Dissertations ; n. s. nr 117)