References
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Esbensen, F. et al. (2008). Active Parental Consent in School-Based Research How Much Is Enough and How Do We Get It? Evaluation Review, 32(4).
Smith, L. and Rick Petosa. (2016). Effective Practices to Improve Recruitment, Retention, and Partnerships in School-Based Studies. Journal of Pediatric Health Care, 30(5).