IOM 2004: Institute of Medicine Committee on the Framework for Evaluating the Safety of Dietary Supplements. Prototype monograph on melatonin. Dietary Supplement Ingredient Prototype Monographs, Developed as Examples for the Report Dietary Supplements: A Framework for Evaluating Safety. Institute of Medicine and the National Research Council of the National Academies, Washington (DC): National Academies Press 2004: D1-D71