%0 Journal Article %T A comparative study of some filtering procedures in glaucoma %A Natarajan Radha %A Das J %A Kanta T %J Indian Journal of Ophthalmology %D 1982 %I Medknow Publications %U http://www.ijo.in/article.asp?issn=0301-4738;year=1982;volume=30;issue=1;spage=1;epage=5;aulast=Natarajan