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3. Hereditary spastic paraplegia;Bickerstaff, E.R.;Journal ofNeurology, Neurosurgery, and Psychiatry,1950
4. The partial sex-linkage of recessive spastic paraplegia;Haldane, J.B.S.;Journal ofGenetics,1941
5. The relative importance of principal and modifying genes in determining some human diseases;Haldane, J.B.S.;Journal,1941