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APA Citation
Sanderson, I. R., Boyle, S., Williams, C. B., & Walker-Smith, J. A. (1986). histological abnormalities in biopsies from macroscopically normal colonoscopies.. Archives of disease in childhood, 61(3), 274–277. http://access.bl.uk/ark:/81055/vdc_100137792490.0x000053