DIFFICULTIES IN SPINAL NEEDLE USE - INSERTION CHARACTERISTICS AND FAILURE RATES ASSOCIATED WITH 25-GAUGE, 27-GAUGE AND 29-GAUGE QUINCKE-TYPE SPINAL NEEDLES
P. Tarkkila et al., DIFFICULTIES IN SPINAL NEEDLE USE - INSERTION CHARACTERISTICS AND FAILURE RATES ASSOCIATED WITH 25-GAUGE, 27-GAUGE AND 29-GAUGE QUINCKE-TYPE SPINAL NEEDLES, Anaesthesia, 49(8), 1994, pp. 723-725