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APA Citation
Lewis, S. J., Egger, M., Sylvester, P. A., & Thomas, S. (2001). early enteral feeding versus "nil by mouth" after gastrointestinal surgery: systematic review and meta-analysis of controlled trials. BMJ, 323(7316), 773–. http://access.bl.uk/ark:/81055/vdc_100143172596.0x000008