Variation in the Duration of Recumbency Post-spinal Anaesthesia in Relation to the Occurrence of Post-dural Puncture Headache Journal title: Journal of Clinical and Diagnostic Research Authors: Elkanah Ayodele Orimolade, Simeone Olugbade Olateju, Joseph Olorunsogo Mejabi, Adedapo Omowonuola Ad... Subject(s):