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Credit
The Influence of heredity and contagion on the propagation of tuberculosis : and the prevention of injurious effects from consumption of the flesh and milk of tuberculous animals / by A. Lydtin, G. Fleming, and Van Hertsen. Public Domain Mark. Source: Wellcome Collection.
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This material has been provided by Royal College of Physicians, London. The original may be consulted at Royal College of Physicians, London.