[EJ-25-21] The Influence of Improved Wheat and Maize Varieties on Infant Mortality in China

作者：Xiaobing Wang, Xinyu Liu, Shi Min, Songqin Jin*, Jikun Huang*, Scott Rozelle, Jieyuan Feng, Boddupalli M. Prasanna　　期刊：PNAS Nexus 　　来源： CCAP