| Institution: | 1. Division of Medical Education, Washington University School of Medicine, St Louis, MO;2. Mallinckrodt Institute of Radiology, Washington University School of Medicine, St Louis, MO;3. Division of Pulmonary and Critical Care Medicine, Washington University School of Medicine, St Louis, MO;4. Division of Biostatistics, Washington University School of Medicine, St Louis, MO;1. Instituto de Cardiologia do Rio Grande do Sul/Fundação Universitária de Cardiologia, Rio Grande do Sul, Brazil;2. Endocrine Division, Hospital de Clínicas de Porto Alegre, Universidade Federal do Rio Grande do Sul, Brazil |
