@misc{Kowalska_Magdalena._Comparison,
 author={Kowalska, Magdalena. and Borzęcki, Grzegorz. and Olejarnik, Iwona. and Borzęcki, Andrzej.},
 howpublished={online},
 publisher={Uniwersytet Marii Curie-Skłodowskiej},
 publisher={Akademia Medyczna (Lublin)},
 language={eng},
 type={artykuł},
 title={Comparison of occurrence frequency of nutritional status disorders among children of different age groups},
 keywords={medycyna, nauki medyczne},
}