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. 2017 Jun 21;7(6):e015939. doi: 10.1136/bmjopen-2017-015939

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Schedule of enrolment, interventions and assessments (after SPIRIT^{20 21}). CCTV, closed-circuit television; IVI-C, Impact of Vision Impairment for Children; LVA, low-vision aid; VRQoL, vision-related quality of life.