“…12 For example, groups of experts who share common educational and geographic backgrounds may be more likely to agree with each other, and this may be particularly relevant to a nascent subspecialty like NMUS, where a founder effect from the early adopters is likely. With respect to this expert cohort, 7 the majority of the experts were from North America and Europe, with only one expert each from the Middle East, Asia, and Australia. Although As the popularity of NMUS increases, there is a greater need for suitable training and credentialing.…”