title: International consensus recommendations on the aesthetic usage of botulinum toxin type A (Speywood Unit)--Part I: Upper facial wrinkles.
authors.affiliation: Clinique de Chirurgie Esthétique Iéna, Paris, France. benjaminascher@wanadoo.fr
authors.forename: B
authors.initials: B
authors.lastname: Ascher
authors.forename: S
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authors.lastname: Talarico
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authors.lastname: Cassuto
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authors.lastname: Escobar
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authors.lastname: Hexsel
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authors.lastname: Jaén
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authors.initials: GD
authors.lastname: Monheit
authors.forename: B
authors.initials: B
authors.lastname: Rzany
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authors.initials: M
authors.lastname: Viel