NINDS Postural Tachycardia Syndrome Information Page http://www.ninds.nih.gov/disorders/post ... ndrome.htm National Institute of Neurological Disorders and Stroke Postural Tachycardia Syndrome POTS POTS Postural Tachycardia Syndrome Postural Orthostatic Tachycardia Syndrome http://www.ninds.nih.gov/disorders/post ... ndrome.htm NINDS postural orthostatic tachycardia syndrome POTS POTS Postural Orthostatic Tachycardia Syndrome http://www.ninds.nih.gov/disorders/p...a_syndrome.htm Postural Tachycardia Syndrome National Institute of Neurological Disorders and Stroke POTS postural tachycardia syndrome postural tachycardia syndrome Postural Orthostatic Tachycardia National Institute of Neurological Disorders and Stroke National Institute of Neurological Disorders and Stroke NINDS Postural Tachycardia Syndrome Information Page National Institute of Health (NIH) Postural Tachycardia Syndrome Information Page National Institute of Neurological Disorders and Stroke POTS Chronic Orthostatic Intolerance Postural Tachycardia Syndrome National Institute of Neurological Disorders and Stroke postural tachycardia syndrome - POTS