1. Neurological complications after spinal anesthesia;Thorsen G;Acta Chir Scand,1947
2. Neurological sequelae of spinal anesthesia;Greene NM;Anesthesiology,1961
3. The risk of abducens palsy after diagnostic lumbar puncture;Thömke F;Neurology,2000
4. Diplopia: a complication of dural puncture;Nishio I;Anesthesiology,2004
5. Post dural puncture headache after spinal anaesthesia for caesarean section: a comparison of 25 g Quincke, 27 g Quincke and 27 g Whitacre spinal needles;Shaikh JM;J Ayub Med Coll Abbottabad,2008