Letter to the editor: COVID-19 cases among school-aged children and school-based measures in Hong Kong, July 2020
Fong, MW and Cowling, BJ and Leung, GM and Wu, P, Eurosurveillance, 25, 2001671 (2020), https://doi.org/10.2807/1560-7917.ES.2020.25.37.2001671