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Credit
On the principles which govern treatment in diseases and disorders of the heart : the Lumleian lectures deliverd before the Royal College of Physicians, London / by Sir Richard Douglas Powell. Public Domain Mark. Source: Wellcome Collection.
Provider
This material has been provided by the Augustus C. Long Health Sciences Library at Columbia University and Columbia University Libraries/Information Services, through the Medical Heritage Library. The original may be consulted at the the Augustus C. Long Health Sciences Library at Columbia University and Columbia University.