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Morillo, Diana; Mena-Bucheli, Santiago; Ochoa, Angélica; Chico, Martha E; Rodas, Claudia; Maldonado, Augusto; Arteaga, Karen; Alchundia, Jessica; Solorzano, Karla; Rodriguez, Alejandro; Figueiredo, Camila; Ardura-Garcia, Cristina; Bachmann, Max; Perkin, Michael Richard; Chis Ster, Irina; Cruz, Alvaro; Romero, Natalia Cristina; Cooper, Philip (2022). Prospective study of factors associated with asthma attack recurrence (ATTACK) in children from three Ecuadorian cities during COVID-19: a study protocol. BMJ open, 12(6), e056295. BMJ Publishing Group 10.1136/bmjopen-2021-056295
