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APA Citation
Su, A., Gandhy, R., Barlow, C., & Triadafilopoulos, G. (2017). utility of the wireless motility capsule and lactulose breath testing in the evaluation of patients with Parkinson's disease who present with functional gastrointestinal symptoms. BMJ open gastroenterology, 4(1), . http://access.bl.uk/ark:/81055/vdc_100135177588.0x000004