title: Xanthone Derivatives from Polygala nitida.
authors.affiliation: Departamento de Química, Instituto Tecnológico y de Estudios Superiores de Monterrey, Sucursal de Correos "J", 64849 Monterrey, N. L. México.
authors.forename: X A
authors.initials: XA
authors.lastname: S
authors.forename: M G
authors.initials: MG
authors.lastname: U
authors.forename: C
authors.initials: C
authors.lastname: Ortiz
authors.forename: J
authors.initials: J
authors.lastname: Jakupovic