Healthcare costs by procedure & approach.

The clipped boxplot trimmed extremely high values based on 20,000,000 KRW. (1 U.S. dollor = 1,150 Korean won) (A) The number of clipped patients in open anterior resection = 256; The number of clipped patients in laparoscopic anterior resection = 334; The number of clipped patients in open low anterior resection = 432; (B) The number of clipped patients in laparoscopic low anterior resection = 792; The number of clipped patients in open ultra-low anterior resection = 17; The number of clipped patients in laparoscopic ultra-low anterior resection = 76.