Serum vascular endothelial growth factor-D levels correlate with cervical lymph node metastases in papillary thyroid carcinoma. - Lai, Chieh-Wen; Chen, Kuen-Yuan; Hung, Chin-Sheng; Kuo, Shi-Wen; Chang, Yao-Jen; Lin, Ming-Tsan; Chang, Kun-Che; Wu, Ming-Hsun (Growth Factors, 2011)