520,014 FRONTIERS OF HORMONE RESEARCH VOL. 2 Ageing and estrogens. Workshop Conference in Geneva, October 5-6, 1972. Sponsored by the International Health Foundation, Geneva Vol. ed. Pieter A. van Keep,/i in./. Basel 1973 S. Karger 8° s. VII, nib. 1, 191 nlb. 1, ilustr. Frontiers of Hormone Research, vol. 2.