A. Ciapponi,F. Rodríguez Cairoli,G. Solioz,C. Rojas-Roque,A. Hernández-Vásquez,A. Palacios and A. Bardach. Switching from cigarettes to electronic nicotine delivery system: rapid systematic review and meta-analysis and economic aspects. Rev Peru Med Exp Salud Publica. 2021;38(4):10.17843/rpmesp.2021.384.7776.