<prompt> Bone resorption markers are -Serum propeptide of type I procollagenOsteocalcinUrine total free deoxypyridinolineFree glutamic acid cross linkage  <response>: Markers of bone resorptionUrine serum cross-linked N telopeptideUrine serum cross-linked C telopeptideUrine total free deoxypyridinolineUrine hydroxyprolineUrine hydroxylysine glycosidesSerum tartrate-resistant acid phosphataseSerum bone sialoprotein 