The clinical and virological features of two children's coinfections with human adenovirus type 7 and human coronavirus-229E virus oleh Shelan Liu, An Zhu, Jinren Pan, Lihong Ying, Wanwan Sun, Hanting Wu, Haiying Zhu, Haiyan Lou, Lan Wang, Shuwen Qin, Zhao Yu, Jian Cai, Yin Chen, Enfu Chen