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