Though individual members of the family may differ, their degree of maturity along the continuum will be strongly related (often either identical or quite the opposite). (religion-online.org)
When individual members of a family suffer, often the entire family does. (theravive.com)
Therapists may address individual members of the family if they appear to be suffering from severe mental health issues that without treatment continue to threaten the potential for good relationships within the family system. (wisegeek.com)