Author contributions
L.M., and C.D., designed the research; L.M., B.M., J.G., X.T., and C.D., extracted the data, and made the table; L.M., B.M., J.G., N.G., X.T., S.C., A.B., H.M., and C.D., analyzed results and/or wrote the paper.
Disclosure statement
N.G. and C.D., disclose Seattle Genetics consultancy.
L.M., B.M., J.G., X.T., S.C., A.B., and H.M., declare no competing financial interests.