548,367 TIKKANEN TUULA Atrial natiuretic peptide in experimental heart failure : academic dissertation / Tuula Tikkanen ; Faculty of Medicine of the Unversity of Helsinki. - Helsinki : [Societas Scientiarum Fennica], 1989. - 86 s. ; 25 cm (Commentationes Physico-Mathematicae, ISSN 0069-6609 ; nr 106. Dissertationes, ISSN 0358-9307 ; nr 25) ISBN 951-653-191-1