1. https://ghr.nlm.nih.gov/primer/basics/cell.
2. https://ghr.nlm.nih.gov/primer/basics/dna.
3. https://www.yourgenome.org/facts/what-is-gene-expression.
4. Analysis of DNA microarray expression data;Simon;Best Pract. Res. Clin. Haematol.,2009
5. https://sapac.illumina.com/science/technology/next-generation-sequencing/microarray-rna-seq-comparison.html?langsel=/in/.