[heparosan-N-sulfate](n) => [heparan-N-sulfate](n)
[heparosan-n-sulfate](n) => [heparan-n-sulfate](n)
[heparosan-N-sulfate](n) => [heparan-N-sulfate](n)
[heparosan-n-sulfate](n) => [heparan-n-sulfate](n)