Morris, A. C., Spangler, W. E., & Boss, J. M. (2000). Methylation of class II trans-activator promoter IV: a novel mechanism of MHC class II gene control. Journal Of Immunology (Baltimore, Md. : 1950), 164(8), 4143-9. https://doi.org/10.4049/jimmunol.164.8.4143 (Original work published 2000)