Epp Songisepp, Jaak Kals, Tiiu Kullisaar, Reet Mändar, Pirje Hütt, Mihkel Zilmer and Marika Mikelsaar*
* Corresponding author: Marika Mikelsaar marika.mikelsaar@ut.ee
Nutrition Journal 2005, 4:22 doi:10.1186/1475-2891-4-22
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