Efficacy and safety of interferon α-2b spray for herpangina in children: A randomized, controlled trial oleh Ying-Zi Ye, Ya-Lan Dou, Jian-Hua Hao, Li Zhou, Ai-Wei Lin, Shao-Ning Wang, Ji-Kui Deng, Min Lei, Ru-Ping Luo, Yi-Nan Liao, Yan Chen, Yuan-Yuan Long, Bi-Quan Chen, Zhi Yang, Lu Gan, Guang-Min Nong, Wei-Li Yan, Hui Yu