The array also includes: 1329 markers related to addiction identified in recent literature from NIDA Genetics Consortium investigators; 12,058 markers used in the smoking cessation v1.0 Quit Success Score biomarker [53]; 2030 pharmacogenomic markers related to absorption, distribution, metabolism, and excretion (ADME); and 7612 markers identified in previous genome-wide association studies or addiction and related diseases [54]. The array includes a panel of 5525 ancestry informative markers (AIMs) for ancestry estimation and evaluation of population substructure.