?:authorAffiliation
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[\'Internal Medicine Department, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil.\', \'Radiology Department, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil.\', \'Internal Medicine Department, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil; Universidade Federal do Rio Grande do Sul, Instituto de Ciências Básicas da Saúde, Pharmacology Department, Porto Alegre, Brazil. Electronic address: rscheffel@hcpa.edu.br.\']
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