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Psychosocial Characteristics of Candidates for the Prospective Evaluation of Radial Keratotomy (PERK) StudyBourque, L. B.; Rubenstein, R.; Cosand, B.; Waring, G. O.; Moffitt, S.; Gelender, H.; Laibson, P. R.; Lindstrom, R. L.; McDonald, M.; Myers, W. D.; Obstbaum, S. A.; Rowsey, J. J.; Schanzlin, D. · Archives of Ophthalmology · 1984