ART4 and esophageal adenocarcinoma: Using a panel of 20 lectins in a magnetic bead array that was coupled to a tandem mass spectrometer, Shah et al. (2015) have demonstrated unique lectin-glycoprotein interactions in serum samples that may be used to distinguish three groups of subjects comprising healthy volunteers, patients with Barrett’s esophagus and patients with esophageal adenocarcinoma.