Deffernez, C, Y Thomas, D Koch, VM Spicher, I Uckay, D Schultze, G Siegl, and HC Matter. 2003. “Viral Aetiology of Acute Respiratory Illnesses in Patients With a Suspicion of Severe Acute Respiratory Syndrome (SARS) in Switzerland”. Swiss Medical Weekly 133 (2728):400-400. https://doi.org/10.4414/smw.2003.10394.