https://www.pfizer.com/news/articles/the_challenges_of_defining_understanding_and_addressing_long_covid
https://www.pfizer.com/news/articles/the_challenges_of_defining_understanding_and_addressing_long_covid
https://presse.inserm.fr/en/covid-long-la-persistance-du-sars-cov-2-dans-les-muqueuses-pourrait-etre-en-cause/66975/
https://presse.inserm.fr/en/covid-long-la-persistance-du-sars-cov-2-dans-les-muqueuses-pourrait-etre-en-cause/66975/