Identification of tumorigenic cells and therapeutic targets in pancreatic neuroendocrine tumors. - Krampitz GW; George BM; Willingham SB; Volkmer JP; Weiskopf K; Jahchan N; Newman AM; Sahoo D; Zemek AJ; Yanovsky RL; Nguyen JK; Schnorr PJ; et al. (Proceedings of the National Academy of Sciences of the United States of America, 2016)