preferred_name: [heparosan-N-sulfate](n) <=> [heparan-N-sulfate](n)
preferred_name_lc: [heparosan-n-sulfate](n) <=> [heparan-n-sulfate](n)
label: [heparosan-N-sulfate](n) <=> [heparan-N-sulfate](n)
label_lc: [heparosan-n-sulfate](n) <=> [heparan-n-sulfate](n)