Supplementary Figure 7: Drug class enrichments among the stable drug clusters.

Enrichment value for each of the 13 level 1 ATC categories: H = Systemic hormonal preparations, excl. sex hormones and insulins, V = Various, B = Blood and blood forming organs, P = Anti-parasitic products, M = Musculo-skeletal system, L = Anti-neoplastic and immunomodulating agents, G = Genito urinary system and sex hormones, R = Respiratory system, A = Alimentary tract and metabolism, D = Dermatologicals, J = Anti-infectives for systemic use, S = Sensory organs, N = Nervous system, and C = Cardiovascular system. Asterisks indicate significant over- or under-enrichment (P < 0.01 and E > 1 or E < 1 respectively). Significance assessed by hypergeometric distribution.