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Prevalence of trachoma in Yemen: results of population-base..:

Ali Thabit, Adnan ; Al-Khatib, Tawfik ; Hail, Wagdi Hazaea Mohammed...
https://researchonline.lshtm.ac.uk/id/eprint/4651141/1/Thabit-etal-2018-Prevalence-of-trachoma-in-Yemen.pdf.  , 2018