Schalet BD, Janulis P, Kipke MD, Mustanski B, Shoptaw S, Moore R, Baum M, Kim S, Siminski S, Ragsdale A, Gorbach PM. Psychometric Data Linking Across HIV and Substance Use Cohorts. AIDS Behav. 2020 Nov;24(11):3215-3224. doi: 10.1007/s10461-020-02883-5. PMID: 32430605.