“Comparison of 7.2% hypertonic saline - 6% hydroxyethyl starch solution and 6% hydroxyethyl starch solution after the induction of anesthesia in patients undergoing elective neurosurgical procedures”, Clinics, vol. 68, no. 3, pp. 323–328, Jan. 2013, doi: 10.1590/clin.v68i3.72129.