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a week ago (edited)
Randomized Controlled Trial
Riboflavin as an independent and accurate biomarker for adherence in a randomized double-blind and placebo-controlled clinical trial.
Ramanujam, V. S., Nayeem, F., Anderson, K. E., Kuo, Y. F., Chen, N. W., Ju, H., & Lu, L. W. (2017). Biomarkers : biochemical indicators of exposure, response, and susceptibility to chemicals, 22(6), 508–516.
2017 Sep
DOI: 10.1080/1354750X.2016.1269201
Conclusion
Riboflavin is an accurate and useful biomarker for study pill ingestion.