1. Factor IX Levels and Oestrogens. Issue 5606 (15th June 1968) Authors: Daniel, D. G.; Bloom, A. C.; Giddings, J. C.; Campbell, H.; Turnbull, A. C. Journal: BMJ Issue: Volume 2:Issue 5606(1968) Page Start: 700 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗