Fig. 1From: The role of matrix metalloproteinase-9 as a prognostic biomarker in papillary thyroid cancerThe mRNA level of MMP-9; a in tumoral compared to adjacent non-tumoral tissues and b in PTC patients compared to MNG, PTC: papillary thyroid carcinoma; MNG: multinodular goiter; error bars were defined as 1 SEM of the meanBack to article page