摘要
By now,the COVID-19 pandemic has affected all corners of the world for over two years.Two years constitutes 4%of the life experience of a 50-year-old,or 50%of the life experience of a 4-year-old.Thus,in terms of the sheer proportion of total life experience,the pandemic has affected children much more than adults.
基金
supported by Grants from the Key-Area Research and Development Program of Guangdong Province(2019B030335001)
the Key Subject Construction Project of Shanghai Municipal Health Commission(shslczdzk02903)
the Ministry of Science and Technology of China(2021ZD0202504).
