» MedlinePlus Medical Encyclopedia: Rapid breathing    Provides information about this disorder.    http://www.nlm.nih.gov/medlineplus/ency/article/003071.htm

» Physiotherapy for Hyperventilation    Information and contacts about hyperventilation compiled and maintained by chartered physiotherapists specialised in the management of breathing pattern disorders.    http://www.physiohypervent.org/

» eMedicine - Hyperventilation Syndrome    Condition in which minute ventilation exceeds metabolic demands, resulting in hemodynamic and chemical changes that produce characteristic symptoms. Information about this disorder including possible treatment.    http://www.emedicine.com/emerg/topic270.htm

» eMedicine Health - Hyperventilation    Consumer health resource center providing information on the causes, symptoms, and treatment.    http://www.emedicinehealth.com/articles/18951-1.asp