Sildenafil citrate significantly improves nocturnal penile erections in sildenafil non-responding patients with psychogenic erectile dysfunction
ABDEL-NASER, M. B ; IMAM, A ; WOLLINA, U
International journal of impotence research, 2004-12, Vol.16 (6), p.552-556 [Periódico revisado por pares]Basingstoke: Nature Publishing
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