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2. Partial paralysis of the face;Bell, C.;London Medical Gazette,1828
3. De paralysis musculorum faciei rheumatica;Friedreich, N.A.;J. der Erfindungen (Gotha); XXV. As quoted in A nnals of Medicine,1798
4. Art in medicine; peripheral facial palsy throughout the ages;Goldman, L.; Schechter, C.G.;New York State Journal of Medicine,1967
5. McHenry, L. C. (1969). Garrison's History of Neurology, p. 136.