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2. Ultrasound in pre-vitrectomy assessment;Restori;Trans Ophthalmol Soc UK,1977
3. Ocular ultrasound;Fielding;Clin Radiol,1996
4. Rapid B-scanning of the vitreous;McLeod;Br J Ophthalmol,1977
5. Fielding JA. Imaging the eye with ultrasound. MD thesis, University of Liverpool, 1993.