Fig. 2. Distribution of PGx in four public resources.
a This study collected PGx from four PGx resources: Drug Bank, PharmGKB, PharmaADME, and Biotransformation. b Relationship between drug category and functional annotation of PGx. Red lines indicate a relationship between drug category and functional annotation. Green lines indicate a relationship between multiple drug categories. Blue lines indicate a relationship between multiple functional annotations. Histograms of PGx for drug category (green bar) and functional annotation (blue bar) are displayed on the left-hand side. Histograms of PGx for all relationships are displayed at the top; only the relationships with a frequency of >10 are shown.