Adolescent Brain Cognitive Development (ABCD) study Linked External Data (LED): Protocol and practices for geocoding and assignment of environmental data oleh Chun Chieh Fan, Andrew Marshall, Harry Smolker, Marybel R. Gonzalez, Susan F. Tapert, Deanna M. Barch, Elizabeth Sowell, Gayathri J. Dowling, Carlos Cardenas-Iniguez, Jessica Ross, Wesley K. Thompson, Megan M. Herting