Online Articles: Letters to the EditorIs Sclerosing Angiomatoid Nodular Transformation an IgG4-associated Sclerosing Disease?Jin, Yan-wen MD*; Gao, Wei MD†; Li, Fu-yu MD*; Cheng, Nan-sheng MD*Author Information *Department of Biliary Surgery †Health Management Center, West China Hospital, Sichuan University, Chengdu Sichuan, P.R. China Y.-W.J. and W.G. contributed equally. The authors declare no conflict of interest. Applied Immunohistochemistry & Molecular Morphology: February 2020 - Volume 28 - Issue 2 - p e18-e20 doi: 10.1097/PAI.0000000000000634 Buy Metrics Copyright © 2018 Wolters Kluwer Health, Inc. All rights reserved.