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Table 2 Patient numbers in PDE-5 inhibitor trials (by world region)

From: Indirect comparison of interventions using published randomised trials: systematic review of PDE-5 inhibitors for erectile dysfunction

Region

Sildenafil

Tadalafil

Vardenafil

Europe

2040

839

309

North America

2486

546

1658

South America

631

0

0

Asia

1026

0

279

Africa

254

0

0

Australia

63

0

0

World

0

0

448

Europe and North America

217

651

580

Europe and Australia

349

0

0