1. Visual impairment in childhood: 3 years experience of an assessment team in Liverpool;Smith, V.,1979
2. The Liverpool visual assessment team: 10 years experience;Child Care Health Dev,1986
3. Liverpool visual assessment team 1985-1989: 5 years on;Hirst, C.; Poole, J.J.; Snelling, G.S.;Child Care Health Dev,1993
4. Visual impairment in Nordic children. I. Nordic registers and prevalence data;Riise, R.; Flage, T.; Hansen, E.;Acta Ophthalmol Copenh,1992
5. Epidemiology of childhood blindness;Baird, G.; Moore, A.T.,1993