; (2) the capacity, expertise, and review mechanisms of the National Institutes of Health with respect to the evaluation and examination of research proposals related to child trauma, including coordination across institutes and centers; (3) the relevance of trauma to other diseases, outcomes, and domains; (4) strategies to link and analyze data from multiple independent sources, including child welfare, health care (including mental health care), law enforcement, and education systems, to enhance research efforts and improve health outcomes; (5) the efficacy of existing interventions, including clinical treatment methods, child- and family-focused prevention models, and community-based approaches, in mitigating the effects of experiencing trauma and improving health and societal outcomes; and (6) identification of gaps in understanding in the field of trauma and areas of greatest need for further research related to trauma. IV Evaluation of new interventions and improving service delivery 401. Clarification of definition of Medicaid EPSDT services; demonstration project to test trauma-informed delivery of EPSDT services (a) Clarification of definition of EPSDT services Section 1905(r) of the Social Security Act ( 42 U.S.C. 1396d(r) ) is amended— (1) in paragraph (1)— (A) in subparagraph (A)(ii), by inserting (including in the immediate aftermath of exposure to a traumatic event) after medically necessary ; and (B) in subparagraph (B)(i), by inserting and any past exposure to traumatic events after health development