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nif:beginIndex
  • 0 (xsd:integer)
nif:broaderContext
nif:endIndex
  • 229 (xsd:integer)
nif:isString
  • The Ethics Committee of Research of the Institute of Social Medicine of the State University of Rio de Janeiro (certificate number 0020.0.259.000–09) approved all procedures involving human subjects before the start of the study.
rdf:type