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Table 2 Description of the characteristics of the articles included in the study

From: Anosmia and COVID-19: perspectives on its association and the pathophysiological mechanisms involved

Reference Month/year of publication Study type Country Institution Scientific Journal Sample (n)
[15] April, 2020 Literature review Switzerland Geneva Centre for Emerging Virus Diseases The British Medical Journal -
[16] April, 2020 Literature review Germany Springer Verlag GmbH European Archives of Otorhinolaryngology -
[17] April, 2020 Literature review Italy Sapienza University of Rome European Review for Medical and Pharmac. Sciences -
[18] May, 2020 Observational Cohort England Multicenter Study Journal of Otolaryngology - Head & Neck Surgery 382
[19] April, 2020 Cross-sectional epidemiological study Italy +3 European counties Multicenter Study European Archives of Otorhinolaryngology 417
[6] March, 2020 Cross-sectional epidemiological study Italy Universidade de Milan Clinical Infectious Diseases 59
[20] April, 2020 Observational Cohort Netherlands Multicenter Study Euro Surveillance 269
[21] April, 2020 Literature review USA University of California Brain, Behavior, and Immunity -
[8] April, 2020 Literature review USA Medical University of South California World Journal of Otolaryngology - Head & Neck Surgery -
[22] April, 2020 Literature review Spain Hospital del Mar Acta Otorrinolaringológica Española -
[7] May, 2020 Literature review Pakistan Bahria University, Medical and Dental College Journal of Clinical Neuroscience -
[1] May, 2020 Literature review USA Brooke Army Medical Center American Journal of Emergency Medicine -
[23] May, 2020 Literature review Iran and USA Multicenter Study Clinical Imaging -
[24] April, 2020 Literature review Colombia Universidad de Manizalas e Universidad de Caldas International Journal of Odontostomatology -
[10] May, 2020 Literature review Germany TU Dresden Journal of the Amarican Medical Association -
[25] April, 2020 Systematic Review and Meta-analysis USA School of Medicine at Hofstra/Northwell American Academy of Otolaryngology–Head and Neck Surgery Foundation 1627
[26] April, 2020 Observational Cohort Iran and USA Multicenter Study International Forum of Allergy and Rhinology 120
  1. Adapted from Aguiar and colleagues [13] and Johnson and colleagues [27]
  2. USA United States of America