Sozial- und Präventivmedizin/Social and Preventive MedicineMarch 1994, Volume 39, Issue 2, pp 113–115 | Cite asMitteilungenArticleFirst Online: 01 March 1994 9 Downloads This is a preview of subscription content, log in to check access.PreviewUnable to display preview. Download preview PDF.Unable to display preview. Download preview PDF.Copyright information© Birkhäuser Verlag Basel 1994