Causes of severe pneumonia requiring hospital admission in children without HIV infection from Africa and Asia: the PERCH multi-country case-control studyKatherine L. O’Brien, Nasreen Mahomed, Laura L. Hammitt et al.|The Lancet|2019Cited by 923
Protecting children in low-income and middle-income countries from COVID-19Salahuddin Ahmed, Eric D. McCollum, Tisungane Mvalo et al.|BMJ Global Health|2020Cited by 46