Sleep disturbances and diminished quality of life in postural tachycardia syndrome.
Bagai K, Song Y, Ling JF, Malow B, Black BK, Biaggioni I, Robertson D, Raj SR. Sleep disturbances and diminished quality of life in postural tachycardia syndrome. J Clin Sleep Med. 2011 Apr 15; 7(2):204-10.