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Ketamine versus alfentanil combined with propofol for sedation in colonoscopy procedures: A randomized prospective study
Hacer Şebnem Türk, Meltem Aydoğmuş, Oya Ünsal, Canan Tülay Işıl, Bülent Citgez, Sibel Oba, Mehmet Eren Açık
(Turk J Gastroenterol 2014; 25: 644-649) DOI: 10.5152/tjg.2014.7014