Samples were taken from 272 people from east and west London, Birmingham and Liverpool - and in total 816 specimens were collected.
研究样本从来自东西伦敦、伯明翰和利物浦的272人的随身物品中提取——总共采集了816份样本。
With 25 points from a possible 36, the North-East club are currently fourth, three points ahead of Chelsea, Liverpool and Arsenal.
他们在36分中拿了25分,这家东北部球队现在排名第4,领先切尔西、阿森纳和利物浦3分。
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