Author

Liu-Ren Zhang

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Review Open access Jul 2026

Timeliness gap in non‑EPI Childhood vaccination in urban China: a five-city study of socioeconomic determinants and caregiver preferences.

Embedding delay metrics and the brief 3 C screen in routine dashboards, supported by sharper AE‑risk communication and fast‑track queues, could close the gap and advance Immunization Agenda 2030 targets.

Linchen Chu, Kangning Sheng, Jia-Jun Li et al. · International Journal for Eq... · 0 citations