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		Naska A, Valanou E, Peppa E, Katsoulis M, Barbouni A, Trichopoulou A. Evaluation of a digital food photography atlas used as portion size measurement aid in dietary surveys in Greece Public Health Nutr. 2016 Sep;19(13):2369-76. doi: 10.1017/S1368980016000227. Epub 2016 Feb 26.
		Valanou E, Naska A, Barbouni A, Katsoulis M, Peppa E, Vidalis P, Trichopoulou A. Evaluation of food photographs assessing the dietary intake of children up to 10 years old. Public Health Nutr. 2017 Dec 4:1-8. doi: 10.1017/S1368980017003354. [Epub ahead of print]