Chung K, Nishiyama N, Yamano S, Komatsu H, Hanada S, Wei M, Wanibuchi H, Suehiro S, Kakehashi A. Serum AGR2 as an early diagnostic and postoperative prognostic biomarker of human lung adenocarcinoma. Cancer Biomark. 2011;10(2):101–7. doi: 10.3233/cbm-2012-0234. PMID: 22430137.