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Timeliness of routine childhood vaccination in 103 low-and middle-income countries, 1978–2021: A scoping review to map measurement and methodological gaps
- Oghenebrume Wariri,
- Uduak Okomo,
- Yakubu Kevin Kwarshak,
- Chigozie Edson Utazi,
- Kris Murray,
- Chris Grundy,
- Beate Kampmann
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- Published: July 14, 2022
- https://doi.org/10.1371/journal.pgph.0000325