A High Polyphenol Diet Improves Psychological Well-Being: The Polyphenol Intervention Trial (PPhIT) oleh Meropi D. Kontogianni, Aswathy Vijayakumar, Ciara Rooney, Rebecca L. Noad, Katherine M. Appleton, Danielle McCarthy, Michael Donnelly, Ian S. Young, Michelle C. McKinley, Pascal P. McKeown, Jayne V. Woodside