The study “Revolving doors and conflict of interest in health regulatory agencies in Brazil”, shows, of the 36 former directors of the National Agency of Supplementary Health (ANS) and the National Agency of Sanitary Surveillance (ANVISA), 16 have, afterwards, begun working as consultants and executives of companies or groups which were monitored by them. Published at the BMJ Global Health scientific journal, on April 19th, the study has the authorship of Prof. Mário Scheffer, from the Preventive Medicine Department of the Medical School of the Universidade de São Paulo, and researchers in Spain and England.

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