Changes in primary care visits for respiratory illness during the COVID-19 pandemic: a multinational study by the International Consortium of Primary Care Big Data Researchers (INT... oleh John M. Westfall, Angela Ortigoza Bonilla, María C. Lapadula, Paula L. Zingoni, William C. W. Wong, William C. W. Wong, Knut A. Wensaas, Wilson D. Pace, Javier Silva-Valencia, Javier Silva-Valencia, Luciano F. Scattini, Amy P. P. Ng, Amy P. P. Ng, Jo-Anne Manski-Nankervis, Zheng J. Ling, Zhuo Li, Adrian H. Heald, Adrian Laughlin, Robert S. Kristiansson, Christine M. Hallinan, Lay H. Goh, Gabriela Gaona, Signe Flottorp, Signe Flottorp, Simon de Lusignan, María S. Cuba-Fuentes, Valborg Baste, Karen Tu, Karen Tu, on behalf of INTRePID