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World Committee on Tourism Ethics (WCTE) recommendation on COVID-19 certificates for international travel
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
BMJ Publishing Group
2021
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8260283/ https://www.ncbi.nlm.nih.gov/pubmed/34226241 http://dx.doi.org/10.1136/bmjgh-2021-006651 |