- Correspondence to Dr Luz Myriam Reynales-Shigematsu, Departamento de Investigación sobre Tabaco, Centro de Investigación en Salud Poblacional, Instituto Nacional de Salud Pública, Cuernavaca 62100, Mexico;
- Received October 10, 2019
- Revised March 6, 2020
- Accepted March 23, 2020
- First published May 7, 2020.
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