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Cynthia Sau Chun Yip and  Richard Fielding,  Health and Greenhouse Gas Emission Implications of Reducing Meat Intakes in Hong Kong.   journal   = {International Journal of Biological, Biomolecular, Agricultural, Food and Biotechnological Engineering}, [online]. World Academy of Science, Engineering and Technology. February 2017, vol. 122(2). 72 - 81[viewed 28 May 2018]. Available from: http://waset.org/publications/10006219.