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Credit
Dissertations on diseases of the organs of respiration / by C.J.B. Williams [and others] ; edited by Alexander Tweedie, with American notes and additions by W.W. Gerhard. Public Domain Mark. Source: Wellcome Collection.
Provider
This material has been provided by the National Library of Medicine (U.S.), through the Medical Heritage Library. The original may be consulted at the National Library of Medicine (U.S.)