title: [An easily constructed cassette holder].
authors.forename: R
authors.initials: R
authors.lastname: Contreras
mesh_terms: D004867:Equipment Design; D005260:Female; D006801:Humans; D007854:Lead; D008297:Male; D011835:Radiation Protection / Q000295:instrumentation*; D011861:Radiography, Dental / Q000295:instrumentation*
chemical_list: D007854:Lead
vernacular_title: Práctico portachasis de facil construccion.