1. Huntington's chorea in South Wales. A genetic and epidemiological study;Walker, D.A.; Harper, P.S.; Wells, C.E.C.; Tyler, A.; Davies, K.; Newcombe, R.G.;Clin Genet,1981
2. Huntington's chorea. The basis for long-term prevention;Harper, P.S.; Walker, D.A.; Tyler, A.; Newcombe, R.G.; Davies, K.;Lancet,1979
3. Decline in the predicted incidence of Huntington's chorea associated with systematic genetic counselling and family support;Harper, P.S.; Tyler, A.; Smith, S.; Jones, P.;Lancet,1981
4. A life table for onset of Huntington's chorea;Newcombe, R.G.;Ann Hum Genet,1981
5. A report on genetic Registers;Emery, A.E.H.; Brough, C.; Crawford, M.; Harper, P.S.; Harris, R.; Oakshott, G.;J Med Genet,1978