?:authorAffiliation
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[\'Hospital São Francisco, Ribeirão Preto, Brazil.\', \'Federal University of Ceará, Ceará, Brazil.\', \'Hapvida Saúde HMO, Fortaleza, Brazil.\', \'University of Fortaleza, Fortaleza, Brazil.\', \'Yale School of Public Health, New Haven, CT, USA. Electronic address: harvey.risch@yale.edu.\']
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