Maccari et al., 2003 - elevated heparan sulfate in gel electrophoresis of patients with Pseudoxanthoma elasticum
Schmidt et al., 2016 - elevation of GAGs in septic shock
Thompson J.N., 2003 - includes a useful figure (Fig. 18.4) with a flowchart for conditions with elevated glycosaminoglycans in patients with a clinical impression of MPS