👤 Ren, J Keywords Articles (1) [First case of severe childhood novel coronavirus pneumonia in China]. 👤 Chen, F 👤 Liu, Z S 👤 Zhang, F R 👤 Xiong, R H 👤 Chen, Y 👤 Cheng, X F 👤 Wang, W Y 👤 Ren, J ⏰ 2020 📚 Zhonghua Er Ke Za Zhi