A. M.Geurts, H. J. G.Jessen, J. H. A. M.Megens, M. A. W. M.Hasenbos, M. J. M.Gielen
Regional Anesthesia: The Journal of Neural Blockade in Obstetrics, Surgery, & Pain Control Jan 1995, 20 (1) 27-32; DOI: 10.1136/rapm-00115550-199520010-00005
Regional Anesthesia: The Journal of Neural Blockade in Obstetrics, Surgery, & Pain Control Oct 1982, 7 (4) 135-139; DOI: 10.1136/rapm-00115550-198207040-00001
Regional Anesthesia: The Journal of Neural Blockade in Obstetrics, Surgery, & Pain Control Oct 1982, 7 (4) 140-143; DOI: 10.1136/rapm-00115550-198207040-00002
Regional Anesthesia: The Journal of Neural Blockade in Obstetrics, Surgery, & Pain Control Oct 1982, 7 (4) 144-148; DOI: 10.1136/rapm-00115550-198207040-00003
Regional Anesthesia: The Journal of Neural Blockade in Obstetrics, Surgery, & Pain Control Jan 1981, 6 (1) 1-3; DOI: 10.1136/rapm-00002370-198101000-00001