Funding for this research was provided by:
Fondo para la Investigación Científica y Tecnológica (PICT 2016 1033)
C.V. Starr Center for the Study of the American Experience, Washington College
Received: 21 May 2020
Accepted: 19 August 2020
First Online: 3 September 2020
Ethics approval and consent to participate
: This study was approved by External Ethical Committee Nexo Asociación Civil IRB#0005349, protocol #1563. Every participant signed a written consent before donating a blood sample for analysis.
: Not applicable.
: The authors declare that they have no competing interests.