RT Journal Article SR Electronic T1 Correction: Estimating health opportunity costs in low-income and middle-income countries: a novel approach and evidence from cross-country data JF BMJ Global Health JO BMJ Global Health FD BMJ Publishing Group Ltd SP e000964corr1 DO 10.1136/bmjgh-2018-000964corr1 VO 4 IS 3 YR 2019 UL http://gh.bmj.com/content/4/3/e000964corr1.abstract AB