title: Sildenafil (Viagra) A breakthrough in the management of an old problem or a risky drug.
abstract: Full text is available as a scanned copy of the original print version.
authors.affiliation: King Faisal Specialist Hospital and Research Center, Riyadh, Kingdom of Saudi Arabia.
authors.forename: M Zuheir
authors.initials: MZ
authors.lastname: Al-Kawi