The images have gone through a multistage review process. Firstly, the relevant forum group evaluated images from the previous atlas as well as hundreds of new illustrations submitted by the ASC-NCI task force and Bethesda forum group members. Images remaining after this first round evaluation were placed on a website and scored independently by the ASC-NCI task force members. Those scoring above a selected mean threshold in the second round were then included in the second edition of the Bethesda atlas. The images on this website include the images from the atlas as well as additional images selected from among those which “passed” the first round of image selection.