“…Except for one internet-based support program [26], all programs were facilitated by a moderator. The moderator's role varied and included facilitating a discussion and/or introducing new topics in a support group [33,35], being the expert to ask questions [10,23,27,36,37] or having an active role in the intervention such as chatting, discussing, and mailing with participants [24,27,30,31,34]. Two studies [28,29] did not describe the role of the moderator.…”