Items where Author is "Liu, W. D."
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(2021) Association of ultra-processed food intake with risk of inflammatory bowel disease: prospective cohort study. Bmj-British Medical Journal. ISSN 1756-1833
(2021) Impact of social isolation on mortality and morbidity in 20 high-income, middle-income and low-income countries in five continents. Bmj Global Health. ISSN 2059-7908