Author contributions
A.W. conception and design of the study, grant applications for third-party funding, production of the interventional compound, interpretation of the data and substantial review of the work, writing of the article. C.M. conception and design of the study, grant applications for third-party funding, production of the interventional compound, interpretation of the data and substantial review of the work, writing of the article. C.R. conception and design of the study, interpretation of the data and substantial review of the work, writing of the article. R.W. conception and design of the study, interpretation of the data and substantial review of the work, writing of the article. A.T. and E.C.O. immunohistochemically stained the study cases for EGFR and morphologically analyzed its expression according to the EGFR pharmDx criteria, review of the work. Q.L. and L.H.: conception of design of the study, statistical analysis of data, writing of the article. D.B.: conception of design of the study, interpretation of data. R.R., S.D. and M.S.: production of the investigational compound, quality assurance of the compound. L.B., U.H.S., S.R., K.Z., R.v.M., K.J.D., U.N., A.B., C.A., V.M.A., Z.U., C.C.: interpretation of data, writing or substantial review of the article. All authors read and approved the final manuscript.