University of Texas Health Science Center at Houston, Houston, Texas, United States
University of Texas Medical School- Houston; Department of Psychiatry; Mental Sciences Institute, Houston, Texas, United States
University of Texas Medical School- Houston, Dept. of Psychiatry Mental Sciences Institute, Houston, Texas, United States
University of Texas,Anesthesiology Department, Houston, Texas, United States
The University of Texas at Brownsville, Brownsville, Texas, United States
Corporacion para Investigaciones Biologicas de Medellin, Medellin, Colombia
Jurisdicción Sanitaria III Matamoros, Matamoros, Mexico
Lyndon B. Johnson Hospital, Houston, Texas, United States
Southern Methodist University, Dallas, Texas, United States
University of Texas School of Public Health Dallas Regional Campus, Dallas, Texas, United States
Memorial Hermann Hospital, Houston, Texas, United States
Memorial Hermann Hospital, Houston, Texas, United States
Texas Tech University School of Medicine, El Paso, Texas, United States