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The effectiveness of pay-it-forward in addressing HPV vaccine delay and increasing uptake among 15-18-year-old adolescent girls compared to user-paid vaccination: a study protocol for a two-arm randomized controlled trial in China.
Li Y, Qin C, Qiu S, He Y, Pang L, Xu X, Yim VW, Tang S, Du H, Gong W, Yang F, Tucker JD, Tang W, Wang Y, Lin L, Jit M, Song W, Li C, Smith J, Li J, Wu D. Li Y, et al. Among authors: li c, li j. BMC Public Health. 2023 Jan 7;23(1):48. doi: 10.1186/s12889-022-14947-3. BMC Public Health. 2023. PMID: 36609267 Free PMC article.
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