PT - JOURNAL ARTICLE AU - Ding Ding AU - Borja del Pozo Cruz AU - Mark A Green AU - Adrian E Bauman TI - Is the COVID-19 lockdown nudging people to be more active: a big data analysis AID - 10.1136/bjsports-2020-102575 DP - 2020 Jun 30 TA - British Journal of Sports Medicine PG - bjsports-2020-102575 4099 - http://bjsm.bmj.com/content/early/2020/06/30/bjsports-2020-102575.short 4100 - http://bjsm.bmj.com/content/early/2020/06/30/bjsports-2020-102575.full