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Izadi, S., D. Silva, D. Sculfor, L. Benjamin, and S. Downes. 'Persistant Bilateral Relative Central Scotomas Induced by Taking an Excessive Dose of Sildenafil'. 2012.

Izadi, S., et al. 'Persistant Bilateral Relative Central Scotomas Induced by Taking an Excessive Dose of Sildenafil'. 2012.