1Investigation on Psychological Vulnerability and Epidemic Prevention of Middle-Aged Family Members During a Public Health EmergencyZHAO Pei-pei, WANG Zhao-guo, LI Chun-xiang, MA Li-li, CHEN Zhi-lan, YANG Hui-min5761-57642Blood Donation of Recruiters for Whole Blood Collection in Zhengzhou City During the Prevention and Control of Corona Virus Disease 2019SI Tian-ning, HE Wen-jie, JIN Xin-li5764-57663Psychological Health,Negative Emotion and Coping Strategies and Their Correlation of the Nurses Working Against Corona Virus Disease 2019 in the Isolated Wards of the Infectious Disease DepartmentWANG Zhao-guo, MA Li-li, LI Chun-xiang, SUN Niu-niu, SHI Su-ling5767-57704Analysis on the Hospitalization Expenses and Influencing Factors in Patients with Acute PancreatitisTAN Lin-lin, SHI Song-he5770-57735Analysis of Prognosis and Influencing Factors of Different Molecular Types of Stage Ⅳ Breast Cancer Based on SEER DatabaseYE Ye, FEI Wei-qiang, FENG Guan5774-57816Analysis of Risk Factors of Pulmonary Hypertension Secondary to Frequent Acute Exacerbation of Chronic Obstructive Pulmonary DiseaseWANG Xiao, XU Ai-guo5782-57857Clinical Features and Prognosis of Ovarian Clear Cell CarcinomaLI Zhe, JI Mei, HE Nan-nan, ZHAO Zhao, YUAN Rui-xia, LI Yue, XU Peng-lin5786-57908Clinical Features of 21 Non-AIDS Patients with Pneumocystis Carinii PneumoniaZHANG Jian-hui, JIANG Meng-yao, ZHAO Fang-yuan, HAN Shuang, YAO Meng-ying5791-57949Comparison of the Effect of Upper Limb Sling Fixation and Shoulder Joint Abduction Frame External Fixation After Operation on Proximal Humerus FractureCHEN Yu-cheng, HUANG Zhi-wei, LIN Zuo-hua, LUO Hui-qin, HE Bing-xuan5795-579810Effect of Early Feeding for Patients with Esophageal Varices in Liver Cirrhosis After Dense LigationWANG Shuai-hua, CHEN Yong-zhong, TONG Ya-lin5798-580211Analysis on Clinical Characteristics of 93 Hospitalized Children with Pertussis SyndromeWANG Li-biao5802-5805