Thema
Adult
Adolescent
1
Age Factors
1
Aged
1
Aged, 80 and over
1
COVID-19
1
Case reports
1
Chickenpox
1
Child
1
Child, Preschool
1
China
1
Coronavirus Infections
1
Cross-Sectional Studies
1
Disease of Respiratory System
1
France
1
Germany
1
Humans
1
Infant
1
Infant, Newborn
1
Italy
1
Medicine & Public Health
1
Middle Aged
1
Netherlands
1
Pandemics
1
Pneumonia, Viral
1
Pneumonia,viral
1
Republic of Korea
1
Risk Factors
1
Spain
1
Switzerland
1
United States
1
Young Adult
1
内科学
1
医药、卫生
1
医药卫生科技
1
呼吸系及胸部疾病
1
成年人
1
水痘
1
病例报告
1
肺炎,病毒性
1