Affinity Purification Coupled to Stable Isotope Dilution LC-MS/MS Analysis to Discover IgG4 Glycosylation Profiles for Autoimmune Pancreatitis oleh Michael X. Chen, Ho-Hsuan Su, Ching-Ya Shiao, Yu-Ting Chang, Ming-Chu Chang, Chih-Chin Kao, San-Yuan Wang, Hsi-Chang Shih, I-Lin Tsai