All-cause and pathogen-specific lower respiratory tract infection hospital admissions in children younger than 5 years during the COVID-19 pandemic (2020–22) compared with the pre-pandemic period (2015–19) in South Africa: an observational studyAlane Izu, Shabir A. Madhi, Vicky L. Baillie et al.|The Lancet Infectious Diseases|2023Cited by 49