AUTHOR=Huang Yongfa , He Zhangyuting , Guan Xiaoduo , Hu Pei , Chen Rui TITLE=The CYP2D6 phenotyping performance of single-point saliva metabolic ratio in a healthy Chinese Han population JOURNAL=Frontiers in Pharmacology VOLUME=16 YEAR=2025 URL=https://www.frontiersin.org/journals/pharmacology/articles/10.3389/fphar.2025.1438760 DOI=10.3389/fphar.2025.1438760 ISSN=1663-9812