548,557 GERONTOLOGY Gerontology : 4th International Symposium : present state and research perspectives in the experimental and clinical gerontology / ed. by Dieter Platt. -Berlin [etc.] : Springer-Verl., [1989]. - XIII, 316 s. : il., wykr. ; 24 cm ISBN 3-540-51544-5 Berlin, Heidelberg, New York ISBN 0-387-51544-5 New York, Berlin, Heidelberg