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APA Citation
Biaggioni, I., Freeman, R., Mathias, C. J., Low, P., Hewitt, L. A., & Kaufmann, H. (n.d.). randomized Withdrawal Study of Patients With Symptomatic Neurogenic Orthostatic Hypotension Responsive to Droxidopa. Hypertension, 65(1), . http://access.bl.uk/ark:/81055/vdc_100051950600.0x000018