| Disease | pure autonomic failure | 
| Symptom | C0020538|hypertension | 
| Sentences | 2 | 
| PubMedID- 25267802 | We randomized 20 autonomic failure patients with supine hypertension (14 men; 69+/-2 years) to receive a single oral dose of placebo, nebivolol 5 mg, metoprolol 50 mg (negative control), and sildenafil 25 mg (positive control) on separate nights in a double-blind, crossover study. | 
| PubMedID- 22801444 | Management approaches to hypertension in autonomic failure. | 
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