Kumar, ASingh, JBetharia, S1986-01-012009-05-291986-01-012009-05-291986-01-01Kumar A, Singh J, Betharia S. Assessment of lacrimal sac and related disorders by clinical echography. Indian Journal of Ophthalmology. 1986 ; 34(): 42-4http://imsear.searo.who.int/handle/123456789/72598engHumansLacrimal Apparatus --ultrasonographyLacrimal Apparatus Diseases --ultrasonographyAssessment of lacrimal sac and related disorders by clinical echography.Journal Article