Summertime ultraviolet exposure of cataract and control patients: a proposed model for testing the sunshine hypothesis / Judit Szabó, László D. Szabó, Sándor Gáspár
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  In: Central European Journal of Occupational and Environmental Medicine. - ISSN 1219-1221. - 1999. 5. évf. 3-4. sz., p. 243-260. : ill.