Chrysanthemum sporopollenin: A novel vaccine delivery system for nasal mucosal immunity oleh Jun Liu, Jun Liu, Xiao-Dan Yan, Xian-Qiang Li, Yu-Hao Du, Li-Li Zhu, Tian-Tian Ye, Ze-Ying Cao, Zhe-Wen Dong, Shu-Tao Li, Xue Xu, Wei Bai, Dan Li, Ji-Wen Zhang, Ji-Wen Zhang, Shu-Jun Wang, Shan-Hu Li, Jin Sun, Xian-Zhen Yin, Xian-Zhen Yin