"Cholera vaccines: WHO position paper – August 2017". Relevé Épidémiologique Hebdomadaire. 92 (34): 477–98. August 2017. hdl:10665/258764. PMID28845659.
World Health Organization (2019). World Health Organization model list of essential medicines: 21st list 2019. Geneva: World Health Organization. hdl:10665/325771. WHO/MVP/EMP/IAU/2019.06. License: CC BY-NC-SA 3.0 IGO.
"Cholera vaccines: WHO position paper – August 2017". Relevé Épidémiologique Hebdomadaire. 92 (34): 477–98. August 2017. hdl:10665/258764. PMID28845659.