Manganese

http://classyfire.wishartlab.com/tax_nodes/C0000001
http://classyfire.wishartlab.com/tax_nodes/C0000422
http://classyfire.wishartlab.com/tax_nodes/C0000426
http://classyfire.wishartlab.com/tax_nodes/C0000426
https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:29035
http://metacyc.org/META/new-image?type=COMPOUND&object=MN+2
http://www.hmdb.ca/metabolites/HMDB0001333
http://www.genome.jp/dbget-bin/www_bget?drug:D04854
http://www.genome.jp/dbget-bin/www_bget?cpd:C19610
https://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?cid=27854
https://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?sid=310264880
https://www.chemspider.com/Chemical-Structure.25916.html
https://mor.nlm.nih.gov/RxNav/search?searchBy=RXCUI&searchTerm=6623
https://www.ebi.ac.uk/chebi/searchId.do?chebiId=29035
https://www.ebi.ac.uk/chembldb/index.php/compound/inspect/CHEMBL2103742
https://www.ebi.ac.uk/pdbe-srv/pdbechem/chemicalCompound/show/MN
https://www.drugs.com/pro/manganese.html
https://en.wikipedia.org/wiki/Manganese