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Prevalence of trachoma in four marakez of Elmenia and Bani ..:

Amer, Khaled ; Müller, Andreas ; Abdelhafiz, Hussein Mohamed...
https://researchonline.lshtm.ac.uk/id/eprint/4651147/1/Prevalence-of-trachoma-in-four-marakez.pdf.  , 2018