“…2,19,23,35 Moreover, theoretically guided research is needed to provide a comprehensive, systematic, and clinically relevant body of knowledge. An integration of systems theory, [36][37][38][39] social-ecological systems theory, 40,41 and stress theory 42,43 predicts that children's development is affected by individual, family, community, and systemslevel characteristics and that stress on any person in the family system has a major influence on the health of all family members. Substantial research indicates that disability can be a major life stressor for children and their families.…”