1. NCBI. n.d. https://www.ncbi.nlm.nih.gov/genome/microbes/ (Accessed December 2018).
2. EMBL. n.d. https://www.ebi.ac.uk/genomes/bacteria.html (Accessed December 2018)
3. KEEG Genome. n.d. https://www.genome.jp/kegg/genome.html (Accessed December 2018).
4. PATRIC. n.d. https://www.patricbrc.org/ (Accessed December 2018).
5. MBGD. n.d. http://mbgd.genome.ad.jp/ (Accessed December 2018).