Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)
You can use this work for any purpose, as long as it is not primarily intended for or directed to commercial advantage or monetary compensation. You should also provide attribution to the original work, source and licence. Read more about this licence.
Credit
Hereditary disorders of erythrocyte metabolism : proceedings of the symposium held February 13-15, 1967, at the City of Hope Medical Center, Duarte, California / edited by Ernest Beutler. Attribution-NonCommercial 4.0 International (CC BY-NC 4.0). Source: Wellcome Collection.