%0 Journal Article %T Can a city population represent a whole country? Essentials of study design for epidemiologic studies/Serum lipid profiles including non-high density lipoprotein cholesterol levels in Turkish school-children %A Yokuşoğlu, M. %A Uzun, M. %A Baysan, O. %J The Anatolian Journal of Cardiology %D 2008 %V 8 %P 174-175 %R