Ross I, Bick S, Ayieko P, Dreibelbis R, et al. Effectiveness of handwashing with soap for preventing acute respiratory
infections in low-income and middle-income countries: a systematic review and
meta-analysis. Lancet 2023 Apr 27:S0140-6736(23)00021-1. doi: 10.1016/S0140-6736(23)00021.
PMID: 37121242