Figure 2

Valuation scale of professional criteria or clinical recommendations proposed to be judged. 1–3: I disagree with the assertion (a lower score indicates greater level of disagreement); 4–6: Neither agree nor disagree with the assertion; I do not have fully defined criteria about the question (choose 4 or 6 if closer to disagreement or to agreement, respectively); 7–9: I agree with the assertion (a greater score indicates greater level of agreement).