1 Department of Internal Medicine, University of Michigan, Ann Arbor, MI 48109, USA; Institute for Healthcare Policy and Innovation, University of Michigan, Ann Arbor, MI 48109, USA; Center for Indigenous Health Research, Wuqu' Kawoq, Tecpán, Guatemala; Research Center for the Prevention of Chronic Diseases, Institute of Nutrition of Central America and Panama, Guatemala City, Guatemala. Electronic address: dcflood@umich.edu.
2 Serviço de Cardiologia e Cirurgia Cardiovascular, Hospital das Clínicas da Universidade Federal de Minas Gerais, Belo Horizonte, Brazil; Departamento de Clínica Médica, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil.
3 Department of Internal Medicine, University of Michigan, Ann Arbor, MI 48109, USA; Institute for Healthcare Policy and Innovation, University of Michigan, Ann Arbor, MI 48109, USA; Center for Clinical Management Research, VA Ann Arbor Healthcare System, Ann Arbor, MI, USA.