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Francis Hoeffer McMechan.

Nitrous oxide-oxygen analgesia and anaesthesia in normal labor and operative obstetrics / F.H. McMechan, M.D., editor.

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McMechan, F. H. (Francis Hoeffer), 1879-1939

Works from the collections

Nitrous oxide-oxygen analgesia and anaesthesia in normal labor and operative obstetrics / F.H. McMechan, M.D., editor.