Cite
HARVARD Citation
Downie, A. et al. (1941). Combined Active and Passive Immunization against Diphtheria. BMJ. 2 (4220), pp. 717-723. [Online].
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Downie, A. et al. (1941). Combined Active and Passive Immunization against Diphtheria. BMJ. 2 (4220), pp. 717-723. [Online].