Ataguba John E, Bloom David E, Scott Andrew J
Health Economics Unit, School of Public Health and Family Medicine, Health Sciences Faculty, University of Cape Town, Cape Town, South Africa.
Harvard T H Chan School of Public Health, Boston, MA, USA.
Lancet Healthy Longev. 2021 Sep;2(9):e540-e542. doi: 10.1016/S2666-7568(21)00178-1. Epub 2021 Sep 2.