Therapeutic effects of olfactory training and systemic vitamin A in patients with COVID-19-related olfactory dysfunction: a double-blinded randomized controlled clinical trial
Abolfazl Taheri, Maryam Naderi, Nematollah Jonaidi Jafari, Hamid Emadi Koochak, Mohsen Saberi Esfeedvajani, Reyhaneh Abolghasemi
Brazilian Journal of Otorhinolaryngology, doi:10.1016/j.bjorl.2024.101451
Three-months olfactory training is effective to treat the COVID-19-related anosmia. • Daily oral vitamin A did not lead to better results in improving anosmia. • The intervention time was important in the final olfactory status of the patients.
Authors' contributions Dr. A. T is the main manager. He had the main rule in the of conceptualization and investigation in the research. Dr. M. N had the main role in data curation and writing the original draft of the manuscript. Dr. M. S helped in formal analysis. Dr. N. J. J and Dr. H. E. K were the project consultants and helped in methodology and data curation. Dr. R. A helped in validation, reviewing, and editing the manuscript.
Conflicts of interest The authors declare no conflicts of interest.
Declarations Consent for publication: Not applicable.
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