1. aSchool of Public Health in Brownsville, University of Texas Health Science Center at Houston, 80 Fort Brown (SPH Bldg.), Brownsville, TX 78520, United States of America (USA).
2. bThe Center for Clinical and Translational Sciences, University of Texas Health Science Center at Houston, Houston, USA.
3. cSecretaría de Salud de Tamaulipas, Ciudad Victoria and Matamoros, Mexico.
4. dSchool of Biological Sciences, University of Texas at Austin, Austin, USA.