Fig. 1From: The external validation of a difficulty scoring system for predicting the risk of intraoperative complications during laparoscopic liver resectionCorrelation between DSS [26] and (a) linear as well as (b) nonlinear models, respectively. The regression lines with no intercepts: (a) yAL = 0.95937yH and (b) yAN = 0.95913yH, respectively. The correlation coefficients: (a) 0.914 (b) 0.948Back to article page