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2. Goodall, A. L., and Curran, R. C. (1953). Ibid., 40, 479.
3. A Text-book ofSurgical;Illingworth, C.F.W.; Dick, B.M.,1941
4. Ueber den feinern Bau und die Formen der krankhaften;Muller, J.;Geschwulste,1838
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