title: [Valuating public health in some zoos in Colombia. Phase 1: designing and validating instruments].
authors.affiliation: Instituto de Salud Pública, Universidad Nacional de Colombia, Colombia. naportvet@hotmail.com
authors.forename: Angela N
authors.initials: AN
authors.lastname: Agudelo-Suárez
authors.forename: Luis C
authors.initials: LC
authors.lastname: Villamil-Jiménez