553,300 LIU ZHURONG Studies on the level of substance P and calcitonin gene-related peptide in cerebrospinal fluid of pregnant women and patients with chronic pain and in rat brain after spinal cord injury : special reference to analytical aspects of neuropeptides i [doctoral dissertation] / by Zhurong Liu ; [Uppsala University]. - Uppsala s Acta Universitatis Upsal:'nsis, 1998. - 52 s. '