Increased C-C chemokine receptor 2 gene expression in monocytes of severe obstructive sleep apnea patients and under intermittent hypoxia. oleh Li-Pang Chuang, Ning-Hung Chen, Shih-Wei Lin, Ying-Ling Chang, Hsiang-Ruei Liao, Yu-Sheng Lin, I-Ju Chao, Yuling Lin, Jong-Hwei S Pang