“…Review patients in a health-care context: six from outpatient settings, 14,20,25,28,30,31 five from inpatient settings, 12,23,33,37,38 one from a cohort of patients with chronic conditions, 15 one from users of an online symptom checker, 29 one from patient advocacy groups, 22 and one through university hospital cooper ation, melanoma support groups, and social media. 27 The other eight studies recruited participants outside of a health-care context: three recruited university students or affiliates, or both, 26,32,35 and five sampled the general population. 16,24,34,36,39 Among the quantitative and mixed methods studies, ten recruited convenience samples of participants, 14,23,28,30,31,33-37 five did anonymous online surveys for which the response rate could not be calculated, 16,26,27,29,32 three recruited all eligible patients, 12,15,38 one did a simple random sampling of mobile telephone users, 39 and one identified all relevant social media posts.…”