scientific article
author: Kirsten Kyvik, Sakari Jukarainen, Päivi Piirilä, Jaakko Kaprio, Kirsi H Pietiläinen, Thorkild I.A. Sørensen, Christine Dalgård, Aila Rissanen, Jesper Lundbom, Nina Lundbom
Copyright status information is not available for this work. The copyright status depends on the jurisdiction, the author's date of death and the date the work was created or published.
To learn more about copyright terms in different countries, visit the countries and terms page.