1684-18241684-1824S1684-18242019000601516Cuba0012201900122019416151615322008155-7520162933Organizacion Panamericana de Salud200915119-12The Royal College of Ophthalmologists20152912121633-8MINSAP20172009841111585-620162922354-81Prensa Latina08/07/2015/10/2020172122395-4111987408-9198655-7008/12/20420062da.ed79-2162014401147-5412/08/201425/10/20