1. TNF-α Is the Critical Mediator of the Cyclic AMP-Induced Apoptosis of CD8+4+ Double-Positive Thymocytes Ivanov, Vladimir N.; Nikolić-Žugić, Janko; Guevara Patiño, José A.; Lacy, Elizabeth; Elkon, Keith B.; Marino, Michael W. 2000 Articles T cellsApoptosisImmunologyCytology