Urotensin-II and endothelin-I levels after contrast media administration in patients undergoing percutaneous coronary interventions oleh Turgay Ulas, Hakan Buyukhatipoglu, Mehmet S Dal, Idris Kirhan, Zekeriya Kaya, Mehmet E Demir, Irfan Tursun, Mehmet A Eren, Timucin Aydogan, Yusuf Sezen, Nurten Aksoy