%0 Journal Article %T Collaborative ealesˇä disease study %A Das Taraprasad %J Indian Journal of Ophthalmology %D 1994 %I Medknow Publications %U http://www.ijo.in/article.asp?issn=0301-4738;year=1994;volume=42;issue=1;spage=1;epage=1;aulast=Das