The ethical question of whether taking blood from normal children for research purposes is justified, is determined in part at least, by whether or not the children are harmed. To try to assess the risks, the effects of venepuncture on a group of healthy subjects were studied, by means of a parental questionnaire completed approximately eighteen months after the venepuncture had taken place. Ninety-two healthy children aged between 6 and 8 had a blood sample taken for non-therapeutic reasons as part of a research study. Questionnaire responses reveal few negative effects, and in some cases positive effects.
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