title: WITHDRAWN: Roles of tetrahydrobiopterin (BH4) cofactor in nitric oxide synthase (NOS) catalysis.
abstract: This article has been withdrawn at the request of the Editors. The Publisher apologises for any inconvenience that this may cause. The full Elsevier Policy on Article Withdrawal can be found at http://www.elsevier.com/locate/withdrawalpolicy.
authors.affiliation: 4 Oswaldo Cruz Institute/FIOCRUZ, Avenida Brasil, 4365 - Manguinhos, Rio de Janeiro, RJ - CEP 21045-900, Brazil.
authors.forename: Marcelo
authors.initials: M
authors.lastname: Genestra