Feedback between p21 and reactive oxygen production is necessary for cell senescence oleh João F Passos, Glyn Nelson, Chunfang Wang, Torsten Richter, Cedric Simillion, Carole J Proctor, Satomi Miwa, Sharon Olijslagers, Jennifer Hallinan, Anil Wipat, Gabriele Saretzki, Karl Lenhard Rudolph, Tom B L Kirkwood, Thomas von Zglinicki