%0 Journal Article %T Association of Serum Serotonin and Pain in Patients with Chronic Low Back Pain before and after Spinal Surgery %A Afshin Farhanchi %A Behrouz Karkhanei %A Elham Khanlarzadeh %A Mashhood Aghajanloo %A Negar Amani %A Zahra Emami %J Archive of "Pain Research and Treatment". %D 2018 %R 10.1155/2018/4901242 %U https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6171217/