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: Tehran University of Medical Sciences, Iran.
authors.forename: Z H
authors.initials: ZH
authors.lastname: Khan
authors.forename: M
authors.initials: M
authors.lastname: Miri
authors.forename: S
authors.initials: S
authors.lastname: Arbabi
authors.forename: M Z
authors.initials: MZ
authors.lastname: Al-Kawi