RT Journal Article SR Electronic T1 Incidence of post-spinal headache following tubal ligation 24 - 48 hours postpartum JF Regional Anesthesia: The Journal of Neural Blockade in Obstetrics, Surgery, & Pain Control JO Reg Anesth Pain Med FD BMJ Publishing Group Ltd SP 21 OP 21 DO 10.1136/rapm-00115550-198813011-00021 VO 13 IS Suppl 1 A1 Roger Williams A1 Paul I. Silverstein A1 Katherine R. Levin YR 1988 UL http://rapm.bmj.com/content/13/Suppl_1/21.abstract AB