c("disease state: healthy", "cell type: peripheral blood monocytes", "treatment: interferon-alpha", "donor id: C")
c("disease state: healthy", "cell type: peripheral blood monocytes", "treatment: interferon-alpha", "donor id: A")
c("disease state: healthy", "cell type: peripheral blood monocytes", "treatment: interferon-alpha", "donor id: B")
c("disease state: healthy", "cell type: peripheral blood monocytes", "treatment: none", "donor id: C")
c("disease state: healthy", "cell type: peripheral blood monocytes", "treatment: none", "donor id: B")
c("disease state: healthy", "cell type: peripheral blood monocytes", "treatment: none", "donor id: A")