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coming later
Notes ∞
- https://web.archive.org/web/20200924123953/http://forum.gettingstronger.org/index.php?board=4.0
- https://gettingstronger.org/
- https://www.google.com/search?q=gettingstronger+oris+%2Bforum&uact=5
- http://www.i-see.org/eyecharts.html
- http://www.i-see.org/gottlieb/presbyopia_chart.pdf
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https://web.archive.org/web/20110903092727/http://www.nei.nih.gov/photo/charts/index.asp
Last updated 2024-01-01 at 23:56:43