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Logo of procrsmedFormerly medchtJournal of the Royal Society of MedicineProceedings of the Royal Society of Medicine
Proc R Soc Med. 1922; 15(Otol Sect): 1–3.
PMCID: PMC2101075

President's Address: The Structural Type of the Mastoid Process, based upon the Skiagraphic Examination of 1,000 Crania of various Races of Mankind

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