Cardiology Research and Practice neurocardiogenic syncope in children and adolescents,” Jour- nal of the American College of Cardiology, vol. 24, no. 2, pp. 490–494, 1994. [13] B. P. Grubb, D. Samoil, D. Kosinski, D. Wolfe, M. Lorton, and E. Madu, “Fluoxetine hydrochloride for the treatment of severe refractory orthostatic hypotension,” The American Journal of Medicine, vol. 97, no. 4, pp. 366–368, 1994. [14] B. P. Grubb, “Postural tachycardia syndrome,” Circulation, vol. 117, no. 21, pp. 2814–2817, 2008. 3