TY - GEN AU - Hatzichristou,D G AU - Apostolidis,A AU - Tzortzis,V AU - Ioannides,E AU - Yannakoyorgos,K AU - Kalinderis,A TI - Sildenafil versus intracavernous injection therapy: efficacy and preference in patients on intracavernous injection for more than 1 year SN - 0022-5347 PY - 2000///1005 KW - Adult KW - Aged KW - Alprostadil KW - administration & dosage KW - Humans KW - Male KW - Middle Aged KW - Phosphodiesterase Inhibitors KW - therapeutic use KW - Piperazines KW - Purines KW - Sildenafil Citrate KW - Sulfones KW - Treatment Outcome KW - Vasodilator Agents N1 - Publication Type: Comparative Study; Journal Article ER -