Biaggioni, I., Freeman, R., Mathias, C. J., Low, P., Hewitt, L. A., & Kaufmann, H. (2015). Randomized Withdrawal Study of Patients With Symptomatic Neurogenic Orthostatic Hypotension Responsive to Droxidopa. Hypertension.

Biaggioni, Italo, Roy Freeman, Christopher J. Mathias, Phillip Low, L. Arthur Hewitt, und Horacio Kaufmann. "Randomized Withdrawal Study of Patients With Symptomatic Neurogenic Orthostatic Hypotension Responsive to Droxidopa." Hypertension 2015.

Biaggioni, Italo, et al. "Randomized Withdrawal Study of Patients With Symptomatic Neurogenic Orthostatic Hypotension Responsive to Droxidopa." Hypertension 2015.