Παραπομπή APA

Gore, J., & Silver, R. (2005). Oral sildenafil for the treatment of Raynaud's phenomenon and digital ulcers secondary to systemic sclerosis.

Παραπομπή Chicago Style

Gore, J., και R. Silver. Oral Sildenafil for the Treatment of Raynaud's Phenomenon and Digital Ulcers Secondary to Systemic Sclerosis. 2005.

Παραπομπή MLA

Gore, J., και R. Silver. Oral Sildenafil for the Treatment of Raynaud's Phenomenon and Digital Ulcers Secondary to Systemic Sclerosis. 2005.

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