How Viagra was discovered by Pfizer
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The little blue pill may not have been without one dutiful nurse.
Should You Trust Erectile Dysfunction Pills? Find Out When the pharmaceutical corporation Pfizer invented Viagra in 1989, no one had predicted the impact it would have on the 50 percent of men
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The rise and riseand rise of Viagra: How the 'little blue pill' was discovered by accident after Welsh miners took part in trials for new angina drug with unexpected results - before
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