Gautier L, Cope L, Bolstad BM and Irizarry RA (2004). “affy—analysis of Affymetrix GeneChip data at the probe level.” Bioinformatics, 20(3), pp. 307–315. ISSN 1367-4803, \Sexpr[results=rd,stage=build]{tools:::Rd_expr_doi("10.1093/bioinformatics/btg405")}.