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BMJ Open|February 21, 2019
Evaluation of influenza surveillance systems in sub-Saharan Africa: a systematic review protocolEvanson Zondani Sambala, Duduzile Edith Ndwandwe, Loveness M Imaan, et al.
Plos One|June 5, 2012
Individual and contextual factors associated with low childhood immunisation coverage in sub-Saharan Africa: a multilevel analysisCharles S Wiysonge, Olalekan A Uthman, Peter M Ndumbe, et al.
Vaccine|December 21, 2019
Immunogenicity and safety of fractional dose yellow fever vaccination: A systematic review and meta-analysisChukwudi A Nnaji, Muki S Shey, Olatunji O Adetokunboh, et al.
Expert Review of Hematology|September 2, 2015
A systematic review of known mechanisms of hydroxyurea-induced fetal hemoglobin for treatment of sickle cell diseaseGift D Pule, Shaheen Mowla, Nicolas Novitzky, et al.
BMJ Open|July 15, 2015
Protocol for a systematic review of the effects of interventions to inform or educate caregivers about childhood vaccination in low and middle-income countriesLungeni A Lukusa, Nyanyiwe N Mbeye, Folasade B Adeniyi, et al.
Vaccines|September 27, 2025
Multilevel Analysis of Zero-Dose Children in Sub-Saharan Africa: A Three Delays Model StudyCharles S Wiysonge, Muhammed M B Uthman, Duduzile Ndwandwe, et al.
Vaccines|July 2, 2021
COVID-19 and the Gaping Wounds of South Africa's Suboptimal Immunisation Coverage: An Implementation Research Imperative for Assessing and Addressing Missed Opportunities for VaccinationChukwudi A Nnaji, Charles S Wiysonge, Maia Lesosky, et al.
BMC Medicine|March 19, 2013
A bibliometric analysis of childhood immunization research productivity in Africa since the onset of the Expanded Program on Immunization in 1974Charles S Wiysonge, Olalekan A Uthman, Peter M Ndumbe, et al.
The Cochrane Database of Systematic Reviews|September 8, 2017
Vitamin A supplements for reducing mother-to-child HIV transmissionCharles S Wiysonge, Valantine N Ndze, Eugene J Kongnyuy, et al.
Expert Review of Vaccines|July 26, 2019
Implementation and evaluation of a collaborative quality improvement program to improve immunization rate and reduce missed opportunities for vaccination in primary health-care facilities: a time series study in Kano, NigeriaAbdu A Adamu, Olalekan A Uthman, Muktar A Gadanya, et al.
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