The question of vaccination popularly considered : with a view to dissipate any doubts that may continue to disturb the public confidence in the expediency and security of the practice / by John Marshall.
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The question of vaccination popularly considered : with a view to dissipate any doubts that may continue to disturb the public confidence in the expediency and security of the practice / by John Marshall. Credit: This material has been provided by The Royal College of Surgeons of England. The original may be consulted at The Royal College of Surgeons of England.. Public Domain Mark