title: Time to learn from what is known.
authors.forename: H
authors.initials: H
authors.lastname: Kuper
authors.forename: J C
authors.initials: JC
authors.lastname: Buchan
authors.forename: A
authors.initials: A
authors.lastname: Foster
mesh_terms: D035843:Biomedical Research; D001766:Blindness / Q000209:etiology / Q000517:prevention & control*; D006801:Humans; D011314:Preventive Health Services / Q000379:methods; D014141:Trachoma / Q000150:complications / Q000517:prevention & control*