Digital acoustic surveillance for early detection of respiratory disease outbreaks in Spain: a protocol for an observational study.
Juan Carlos Gabaldón-FigueiraJoe BrewDominique Hélène DoréNita UmashankarCarlos J ChaccourVirginia OrrilloLai Yu TsangIsabel BlaviaAlejandro Fernandez-MonteroJavier BartoloméSimon Grandjean LapierreC ChaccourPublished in: BMJ open (2021)
NCT04762693.