Comparison of double-hole and single-hole pencil-point needles for spinal anesthesia with hyperbaric bupivacaine*1

Regional Anesthesia and Pain Medicine - Tập 23 - Trang 271-277 - 1998
Risto Puolakka1, Juhani Haasio1, Per H. Rosenberg1, Marjatta Tuominen1
1From the Department of Anaesthesiology, Helsinki University Central Hospital, Töölö Hospital, Helsinki, Finland.