Flasche Stefan, Smith Peter G
Vaccine Centre, London School of Hygiene & Tropical Medicine, London, UK.
MRC Tropical Epidemiology Group, London School of Hygiene & Tropical Medicine, London, UK.
Lancet Infect Dis. 2019 May;19(5):465-466. doi: 10.1016/S1473-3099(19)30167-7.