Medical education : extracts from lectures delivered before the Johns Hopkins University, Baltimore, 1877-8 / by John S. Billings.
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Medical education : extracts from lectures delivered before the Johns Hopkins University, Baltimore, 1877-8 / by John S. Billings. 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