1. From Regeneron Pharmaceuticals, Tarrytown (D.M.W., T.N., S.A., H.G., R.B., J.X., A.T.H., J.D.H., B.J.M., D.R., M.H., J.I., D.Y.A., C. Perry, C. Pan, A.M., R.H., J.D.D., K.C.T., A.B., C.A.K., Y.K., A.C., W.K., B.K., A.T.D., Y. S., G.P.G., N.S., L.L., N.B., G.H., G.D.Y.) and Excision BioTherapeutics, New York (S.S.) — both in New York; Bio-Medical Research (L.R.-G.) and Universal Medical and Research Center (G.A.) — both in Miami; Hope Clinical Research, Canoga Park, CA (H.A.); PMG Research of Wilmington,...