title: [An integral system of quality control at the Mexican Institute of Social Security].
authors.forename: A
authors.initials: A
authors.lastname: Parra-Covarrubias
mesh_terms: D006801:Humans; D008800:Mexico; D011786:Quality Control; D012943:Social Security / Q000458:organization & administration*
vernacular_title: El sistema integral de control de calidad en el Instituto Mexicano del Seguro Social.