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A printable Snellen Chart, which you can download online.
Something to cover one eye at a time, like an eye patch or a paper cup.
Scissors.
Tape or tack to hang the chart on your wall.
Pencil or pen to record your results.
Orphan drugs are a pharmaceutical agent that has been developed to treat a rare medical condition, called Orphan disease. <span>In the US and EU it is easier to gain marketing approval for an orphan drug, and there may be other financial incentives, such as extended exclusivity, all intended to encourage the development of drugs which might otherwise lack a sufficient </span>profit motive.<span>The </span>Orphan Drug Act<span> (ODA) of January 1983, passed in the </span>United States<span>, with lobbying from the </span>National Organization for Rare Disorders<span> and many other organizations,</span><span> is meant to encourage </span>pharmaceutical companies<span> to develop drugs for diseases that have a small market.</span>
The answer is <span>D.about 95 percent.</span>
