KovalevskiÄ, E I [New biochemical test for the early differential diagnosis of retinoblastoma in children]. [electronic resource] - Vestnik oftalmologii 1973 - 30-4 p. digital Publication Type: Journal Article ISSN: 0042-465X Subjects--Topical Terms: AdolescentAge FactorsChildChild, PreschoolDiagnosis, DifferentialEye Diseases--diagnosisEye Neoplasms--diagnosisGlycoproteins--bloodHumansInfantRetinoblastoma--diagnosis