Definition of "subtypes" [subtypes]

• Plural form of subtype. (noun)

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• "Blood and tissue samples stored in freezers in Africa and in European hospitals that treat Africans - a few going back to the 1950s - form a map of AIDS viral subtypes, which is surprisingly complex."
• "Kerr JR, Petty R, Burke B, Gough J, Fear D, et al. (2008) Gene expression subtypes in patients with chronic fatigue syndrome/myalgic encephalomyelitis."
• "Hierarchical clustering was used to identify gene-expression subtypes, and Gene Set Enrichment Analysis (GSEA) to discover biological features of those subtypes."