Koga K, Hamasaki M, Kato F, Aoki M, Hayashi H, Iwasaki A, Kataoka H, Nabeshima K. Association of c-Met phosphorylation with micropapillary pattern and small cluster invasion in pT1-size lung adenocarcinoma. Lung Cancer. 2013 Dec;82(3):413–9. doi: 10.1016/j.lungcan.2013.09.005. PMID: 24094902.