RT Journal Article SR Electronic T1 Assessing relation between preoperative serum creatinine levels and postoperative outcomes in patients undergoing open-heart surgery JF Saudi Medical Journal JO Saudi Med J FD Prince Sultan Military Medical City SP 512 OP 512 VO 35 IS 5 A1 Xin L. Cui A1 Fu S. Xue A1 Yi Cheng A1 Rui P. Li YR 2014 UL http://smj.org.sa/content/35/5/512.abstract AB