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	1.	Endoscopy services in Malaysia--a surgical bias. [electronic resource] by Wong, D N Producer: 19980105 In: Gastrointestinal endoscopy vol. 46 Availability: No items available. Save to lists Add to cart (remove)
	2.	Ethnic and sex differences in E-cigarette use and relation to alcohol use in California adolescents: the California Health Interview Survey. [electronic resource] by Wong, D N Fan, W Producer: 20180531 In: Public health vol. 157 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	3.	Endoscopic assessment of blood flow in duodenal ulcers. [electronic resource] by Leung, F W Wong, D N Lau, J Bondoc, E M Hsu, R Leung, J W Producer: 19940912 In: Gastrointestinal endoscopy vol. 40 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)

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