“…Eighteen studies (20.7%) used focus group discussions (FDGs) [19,23–25,28,50,53,61,68,73,74,76,77,82,94,98,167,169], 16 used both IDIs and FDGs (18.4%) [18,30,31,38,44,52,64,72,75,79,83,86,92,93,99,170], one used free attitude interviews (FAIs) and FGDs (1.1%) [80], one used group sessions without more detail [168], one used IDIs and life history and illness narratives [48] and one used digital stories [91]. …”