Khoo See Meng, Tan Joo Hui, Shi Dong Xia, Jamil Hajjah Khalizah Haji, Rajendran Nallathamby, Lim T K
Division of Respiratory, Critical Care and Sleep Medicine, National University Hospital, 5 Lower Kent Ridge Road, Singapore 119074, Singapore.
Sleep Med. 2009 Jun;10(6):686-8. doi: 10.1016/j.sleep.2008.09.012. Epub 2009 Feb 18.