Global causes of blindness and distance vision impairment 1990-2020: a systematic review and meta-analysis.
Lancet Glob Health. 2017 Dec;5(12):e1221-e1234. doi: 10.1016/S2214-109X(17)30393-5. Epub 2017 Oct 11.
Lancet Glob Health. 2017.
PMID: 29032195
Free article.
Review.