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APA Citation
Chu, H., Zhong, L., Li, H., Zhang, X., Zhang, J., & Hou, X. (2014). epidemiology Characteristics of Constipation for General Population, Pediatric Population, and Elderly Population in China. Gastroenterology research and practice, 2014, . http://access.bl.uk/ark:/81055/vdc_100082253425.0x00002f