Dr. Nabila El-Bassel, Wilma and Albert Musher Professor of Social Work at Columbia School of Social Work (CSSW), served as Principal Investigator on the New York site with help from a multidisciplinary team of scientists at the Social Intervention Group (SIG). Dr. El-Bassel and her colleagues across the study relied heavily on community coalitions made up of policy makers, healthcare professionals, stakeholders, people with lived experience, and more to establish a unique, scientific approach that uplifts the voices of the communities.