Shankuan Zhu

Participants A total of 5 132 participants aged 18–80 years were recruited from the baseline survey of the Lanxi Cohort Study, which was conducted in urban and rural areas of Lanxi, Zhejiang Province, China, from June 2015 to August 2017. The Lanxi Cohort Study was established to systematically investigate the aetiology and interplay of body fat distribution and multiple factors with obesity and obesity-related non-communicable diseases in China [22].

Abstract This paper offers a unique perspective about the development of the online-to-offline (O2O) food delivery industry from 2017 to 2019 in China. This study demonstrates the latest transformation and improvements of the O2O market that address some common problems in the early stages of the development of this raising industry in China. New strategies and regulations from the O2O platforms, food providers, and national and local governments are discussed.

Abstract Background Though tea drinking years and menopause stages have been indicated to be related with bone mineral density (BMD), most human studies have not considered the impact of tea drinking beginning time. Whether drinking tea before or after menopause plays a role in BMD is still unclear. This study aims to analyze whether drinking tea before or after menopause influences BMD in Chinese postmenopausal women.