TWIST1 and nasopharyngeal carcinoma: To investigate whether high Src-1 or Twist1 expression is associated with any clinical feature, the 134 NPC patients was divided into high Src-1 group, low Src-1 group, high Twist1 group or low Twist1 group according to mRNA expression log2 (T/N) ratio of Src-1 and Twist1.