Fig. 4From: Higher IGFBP-1 to IGF-1 serum ratio predicts unfavourable survival in patients with nasopharyngeal carcinomaComparison of serum levels of IGFBP-1, IGF-1 and r IGFBP-1/IGF-1 in NPC and control groups. Serum levels were quantified from NPC and control patients of a serum IGFBP-1 level, b serum IGF-1 level and c Ratio of serum IGFBP-1 to IGF-1Back to article page