00420nas a2200097   4500000000100000008004100001260003800042100003100080245012900111856008200240       2021                            d  bWorld Health OrganizationaGeneva1 aWorld Health Organization 00aReport of the 23rd meeting of the WHO Alliance for the Global Elimination of Trachoma by 2020, 30 November–1 December 2020  uhttps://apps.who.int/iris/bitstream/handle/10665/341049/9789240023925-eng.pdf