Fig 1 (IMAGE) Higher Education Press Caption Fig 1 Credit Zhe Nian, Dan Wang, Hao Wang, Wenxu Liu, Zhenyi Ma, Jie Yan, Yanna Cao, Jie Li, Qiang Zhao, Zhe Liu Usage Restrictions none License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.