The authors thank Francine Khan, Arman Mendoza, and Kadelle Pollock of the Research Animal Facilities, Regeneron Pharmaceuticals, Inc., for their excellent assistance in animal anesthesia and monitoring support.
Disclosure: J. Cao, Regeneron Pharmaceuticals, Inc. (E, F, I), P; T.C. MacPherson, Regeneron Pharmaceuticals, Inc. (E, F); B.V. Iglesias, Regeneron Pharmaceuticals, Inc. (E, F, I); Y. Liu, Regeneron Pharmaceuticals, Inc. (E, F, I); N. Tirko, Regeneron Pharmaceuticals, Inc. (E, F); G.D. Yancopoulos, Regeneron Pharmaceuticals, Inc. (E, F, I), P; S.J. Wiegand, Regeneron Pharmaceuticals, Inc. (E, F, I), P; C. Romano, Regeneron Pharmaceuticals, Inc. (E, F, I)