Silk Road Disease is rare even if you're a old Qing,
Silk-Road Disease 110 550 850 1620(sq) 4750(sq) Hz
can cause serious eye problems. And of related nature,
Slow Virus Diseases 190 370 750 4519(sq) 6500(sq) 9650(sq)Hz
Connective Tissue Diseases 160 490 620 850 1573(sq) Hz
Good luck.
