1. Snoring and Obstructive Sleep Apnea http://www.vitalaire.ca/breathin/v7n2/noframes/snore.htm
2. Sleep Related Breathing Disorders & Associated Morbidity http://www.hkmj.org.hk/hkma/cme/sleep.htm
3. “A cost-effective and rational surgical approach to patients with snoring, upper airway resistance syndrome, or obstructive sleep apnea syndrome”;Utley;Laryngoscope,June 1997
4. The Merck Manual: Sleep Apnea Syndromes; Etiology and Clinical Features http://www.merck.com/!!spVD01FCnspVD01FCn/pubs/mmanual/html/jkihkkc.htm
5. “Sleep apnea.” The Sleep Disorder Diagnostic Center . http://www.rxsleep.com/apnea.htm