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History
- Accepted December 6, 2021
- Published online January 5, 2022.
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© American Federation for Medical Research 2021. No commercial re-use. See rights and permissions. Published by BMJ. This article is made freely available for personal use in accordance with BMJ’s website terms and conditions for the duration of the covid-19 pandemic or until otherwise determined by BMJ. You may use, download and print the article for any lawful, non-commercial purpose (including text and data mining) provided that all copyright notices and trade marks are retained.https://bmj.com/coronavirus/usage
Author Information
- Héctor David Meza-Comparán
- Instituto Nacional de Geriatría, Mexico City, Mexico
- Correspondence to Dr Héctor David Meza-Comparán, Dirección de Investigación, Instituto Nacional de Geriatría, Mexico City, Mexico; hmezacomparan{at}gmail.com