Establishing rat models of slow transit constipation and chronic stress-induced depression: correlation of constipation and depression 
Zhang Guo-ying, Jiang Yan-ping, Hu Hui-ling, Cao Zan-jian
Chinese Journal of Tissue Engineering Research . 2015, (27): 4356 -4360 .  DOI: 10.3969/j.issn.2095-4344.2015.27.017