“…[20][21][22][23][24][25][26][27][28][29][30][31][32] Nine studies were performed in obstetric patients, 20,21,23,24,[27][28][29]31,32 3 in non-obstetric surgical patients (urology, vascular, and orthopedics), 22,26,30 and 1 in patients requiring a diagnostic lumbar puncture in the emergency department. 25 The quality of the studies was generally good, with the most common deficiency being unclear patient selection criteria.…”