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13. A clinical investigation of the surgical correction of myopia by the method of Fyodorov. Cowden JW, Bores LD. Ophthalmology; 1981 Aug 15; 88(8):737-41. PubMed ID: 7322495 [Abstract] [Full Text] [Related]
16. First considerations after six years (360 cases) of radial keratotomy. Haverbeke L. Bull Soc Belge Ophtalmol; 1986 Aug 15; 213():153-6. PubMed ID: 3719173 [No Abstract] [Full Text] [Related]