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• Sociodemographic and Motivational Characteristics of Parents Who Volunteer Their Children for Clinical Research: A Controlled Study 

  Harth, S.C.; Thong, Y.H. (1990-05-26)

  ...A questionnaire was administered to parents who volunteered their children for a...trial of a drug to treat asthma and to a control group of parents whose children were eligible for the trial but had refused ...