Is your patient a pilot planning to fly in 6 hours?

Edited by: Joe Hing Kwok Chu If so, do not use Viagra.

Using Viagra may impair the ability to distinquish green and blue colors.

Note:

A professional program is available for learning more on Traditional Chinese Medicine edited by the author. This program includes warnings, conditions that might not be suitable to use Viagra and alternative diagnostics and traditional Chinese herb formulae for impotence. Contact:,Joe Hing Kwok Chu  .

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