title: [Step by step in the design of a focus group-based study].
authors: Escuela Andaluza de Salud Publica, Granada, Spain.
authors: M A
authors: MA
authors: Prieto Rodríguez
authors: J C
authors: JC
authors: March Cerdá
mesh_terms: D017144:Focus Groups / Q000379:methods*; D012107:Research Design