IL-4 Induces Apoptosis in A549 Lung Adenocarcinoma Cells: Evidence for the Pivotal Role of 15-Hydroxyeicosatetraenoic Acid Binding to Activated Peroxisome Proliferator-Activated Receptor γ Transcription FactorPattabhiraman Shankaranarayanan, Santosh Nigam|The Journal of Immunology|2003Cited by 76