Figure 1. Survey Methods.

^aGiven the uniformity of positive responses from panelists for the initial list of diagnoses suggested in the diagnoses round 1 survey, diagnoses reaching preliminary consensus were accepted and not proposed in a second round. Diagnoses that were close but did not reach consensus (65%-69.9% of panelists voting “agree” or “strongly agree”) were surveyed back to panelists in a second round to ensure agreement on inclusion. There was greater diversity in panelists’ responses in the features and images surveys, and these objectives were therefore all surveyed to panelists in 2 sequential rounds.

^bNew images were proposed to the expert panel for voting if: A, none of the offered images reached preliminary consensus; B, less than 50% of initially offered images reached preliminary consensus and panelists offered alternate dermoscopic images; or C, if multiple panelists had submitted comments expressing dissatisfaction with the initial images offered.