194,551 CRISTOFALO VINCENT J. /red./ Explorations in aging. Proceedings of the Philadelphia Symposium on Aging held in Philadelphia,Pensylvania,September 30-October 2, 1974. Ed. by Vincent J.Cristofalo, Jay Roberts and Richard C. Adelman. New York 1975 Plenum Press 4° s. IX, nlb. 307, il. Advances in Experimental Medicine and Biology vol. 61