1. Manual for the Stycar vision tests;Sheridan, M.,1976
2. Visual screening of pre-school children;Cameron, J.H.; Cameron, M.;Br Med J,1978
3. Mobile orthoptic service for primary screening of visual disorder in young children. Br Med3';MacLellan, A.V.; Harker, P.,1979
4. handicap in children;In, Smith-Vernon H.,1979
5. Epidemiology for the uninitiated: screening;Rose, G.;Br Med J,1978