Health anxiety in medical employees: A multicentre study oleh Qingsong Chen, Yuqun Zhang, Dongyun Zhuang, Xueqin Mao, Guolin Mi, Dijuan Wang, Xiangdong Du, Zhenghui Yi, Xinhua Shen, Yuxiu Sui, Huajie Li, Yin Cao, Zufu Zhu, Zhenghua Hou, Qibin Li, Yonggui Yuan