Olfactory dysfunction is more severe in wild-type SARS-CoV-2 infection than in the Delta variant (B.1.617.2) by Ludger Klimek, PhD, MD, Jan Hagemann, MD, Thomas Hummel, PhD, MD, Aytug Altundag, MD, Constantin Hintschich, MD, Sabine Stielow, MHBA, Jean Bousquet, MD, PhD

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