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4 Ayoub SS, "The involvement of a cyclooxygenase 1 gene-derived protein in the antinociceptive action of paracetamol in mice" 538 (538): 57-65, 2006
5 Zeitz KP, "The 5-HT3 subtype of serotonin receptor contributes to nociceptive processing via a novel subset of myelinated and unmyelinated nociceptors" 22 (22): 1010-1019, 2002
6 Stevens CW, "Testing and comparison of non-opioid analgesics in amphibians" 40 (40): 23-27, 2001
7 De Paz-Campos MA, "Synergistic effect of the interaction between curcumin and diclofenac on the formalin test in rats" 21 (21): 1543-1548, 2014
8 Sommer C, "Serotonin in pain and analgesia" 30 (30): 117-125, 2004
9 Jääskeläinen SK, "Role of the dopaminergic system in chronic pain–a fluorodopa-PET study" 90 (90): 257-260, 2001
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