%0 Journal Article %T Serum YKL-40 Levels in Patients with Esophageal Squamous Cell Carcinoma %A Ozkan Yilmaz %A Ozgur Kemik %A Ahu Kemik %A Aziz Sumer %J Cancer Growth and Metastasis %D 2011 %I %U http://www.la-press.com/serum-ykl-40-levels-in-patients-with-esophageal-squamous-cell-carcinim-a2578