@misc{Olender_Alina._Lack,
 author={Olender, Alina. and Walory, Jarosław.},
 howpublished={online},
 publisher={nakładem Uniwersytetu Marii Curie-Skłodowskiej},
 language={eng},
 type={artykuł},
 title={Lack of significant differences in immunity against diphtheria between populations of Eastern and Western regions of Poland},
 keywords={medycyna, nauki medyczne},
}