In this article, I omitted the ethical statement. This study was approved by institutional ethical committee in Chonnam National University Hospital, Republic of Korea (IRB number: CRI 08058-1).
This corrects the article "An Increased Proportion of Apoptosis in CD4+ T Lymphocytes Isolated from the Peripheral Blood in Patients with Stable Chronic Obstructive Pulmonary Disease" on page 132.