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Timeliness of routine childhood vaccination in low- and middle-income countries, 1978–2021: Protocol for a scoping review to map methodologic gaps and determinants
- Oghenebrume Wariri,
- Uduak Okomo,
- Yakubu Kevin Kwarshak,
- Kris A. Murray,
- Chris Grundy,
- Beate Kampmann
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- Published: June 17, 2021
- https://doi.org/10.1371/journal.pone.0253423