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WebbMyopia is not a simple refractive error, but an eyesight-threatening disease. There is a high prevalence of myopia, 80% to 90%, in young adults in East Asia; myopia has become the leading cause of blindness in this area. As the myopic population increases globally, the severity of its impact is pred … WebbFind the best deals on flights from Philadelphia International (PHL) to Pereira (PEI). Compare prices from hundreds of major travel agents and airlines, all in one search. list of tanks of ww2

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