Tpo

http://classyfire.wishartlab.com/tax_nodes/C0000001
http://classyfire.wishartlab.com/tax_nodes/C0000423
http://classyfire.wishartlab.com/tax_nodes/C0000434
http://classyfire.wishartlab.com/tax_nodes/C0000434
https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:27568
http://www.genome.jp/dbget-bin/www_bget?cpd:C01529
https://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?cid=6326970
https://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?sid=347827913
https://www.chemspider.com/Chemical-Structure.4885617.html
https://mor.nlm.nih.gov/RxNav/search?searchBy=RXCUI&searchTerm=9641
https://www.ebi.ac.uk/chebi/searchId.do?chebiId=27568
https://en.wikipedia.org/wiki/Selenium