Rosengren, B Cataract extraction by means of the cryoextractor according to Krwawicz. [electronic resource] - Transactions of the ophthalmological societies of the United Kingdom 1964 - 275-9 p. digital Publication Type: Journal Article ISSN: 0078-5334 Subjects--Topical Terms: Cataract Extraction--instrumentationCryosurgery--instrumentationHumans