sentences:  There are several limitations of self-help groups for mental health, including but not limited to their inability to keep detailed records, lack of formal procedures to follow up with members, absence of formal screening procedures for new members, lack formal leadership training, and likely inability of members to recognize a "newcomer" presenting with a serious illness requiring immediate treatment.Additionally, there is a lack of professional or legal regulatory constraints determining how such groups can operate, there is a danger that members may disregard the advice of mental health professionals, and there can be an anti-therapeutic suppression of ambivalence and hostility.Researchers have also elaborated specific criticisms regarding self-help groups' formulaic approach, attrition rates, over-generalization, and "panacea complex."