"World Health Organization. Meeting" . . "Congressos i conferències" . . . . "Gesundheitspflege Qualitätssicherung Kongressbericht." . . "Quality of Health Care." . . "Organització Mundial de la Salut. Oficina Regional para Europa." . . "Assistència mèdica" . . "Qualitätssicherung Gesundheitspflege Kongressbericht." . . "Quality Assurance, Health Care." . . "Europa" . . "Delivery of Health Care standards." . . "Control de qualitat" . . . . . . . . . "The Principles of quality assurance : report on a WHO meeting, Barcelona 17-19 May 1983" . . "Conference papers and proceedings" . . . "The Principles of quality assurance : report on a WHO meeting, Barcelona, 17-19 May 1983" . . . . "The principles of quality assurance : Report on a WHO meeting, Barcelona 17-19 May 1983" . . . . . . . "Congresses" . . . . "The principles of quality assurance : report on a WHO meeting, Barcelona, 17-19 May 1983" . . .