Measuring pneumococcal conjugate vaccine impact in a low-resource setting with minimal baseline data - von Mollendorf, C; Lim, R; Choummanivong, M; Sychareun, V; Vilivong, K; Lai, JYR; Chan, J; Dunne, EM; Phommachanh, S; Moore, K; Ortika, BD; Gray, A; et al. (Oxford University Press, 2021)