@inproceedings{paperid:1055363, author = {Marvi Samavarchi, Fatemeh and Fereidoni, Masoud}, title = {The effect of photoperiod changes on thermal and chemical pain in male rat}, booktitle = {4th Basic and Clinical Neuroscience Congress 2015}, year = {2015}, location = {تهران, IRAN}, keywords = {biological rhythms; photoperiod; opioid receptors; melatonin; pain perception; chemical and thermal pain}, }