@article{article60b05043, title = {Changes in purines concentration in the cerebrospinal fluid of patients experiencing pain: A case-control study}, author = {Schmidt, André P. and Böhmer, Ana Elisa and Soares, Félix A. and Posso, Irimar P. and Machado, Sheila B. and Mendes, Florentino Fernandes and Portela, Luiz Valmor C. and Souza, Diogo O.}, year = {2010}, doi = {10.1016/j.neulet.2010.02.067}, journal = {Neuroscience Letters} }