Surgeons’ opinions about enhanced recovery after surgery for retroperitoneal sarcoma: A survey

Figure 2 Heatmap representing an overview on response to the survey. On the vertical axis, the different observer over the two rounds of the survey; on the horizontal axis, the items proposed (R, relevance; F, feasibility). Color scale: Red, rating Low (score 0-1); yellow, rating Moderate (score 2-3); green, rating High (score 4-5); grey, Not Available (bimodal distribution in reference modal value; no rating given in observer axis).