https://www.inesss.qc.ca/covid-19/presentations-cliniques/anosmie-perte-de-gout-obstruction-nasale-mise-a-jour-completee-01-04-2020.html 2021 Canada pneumonia, viral coronavirus infections review of literature severe taste absent sense of smell nose, nos obstruction, nos nasal obstruction ageusia anosmia olfaction disorders Anosmia ageusia Nasal obstruction taste pandemics COVID-19
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