Dickens F, McIlwain H
The North of England Council of the British Empire Cancer Campaign, Cancer Research Laboratory, Royal Victoria Infirmary, Newcastle upon Tyne, and the Medical Research Council Dept. of Bacterial Chemistry, Middlesex Hospital, London, W. 1.
Biochem J. 1938 Sep;32(9):1615-25. doi: 10.1042/bj0321615.