Schlagwörter
Belgium
Humans
Middle Aged
Female
1.094
Male
1.061
Adult
767
Aged
759
Young Adult
272
Retrospective Studies
271
80 and over
268
Treatment Outcome
258
Adolescent
246
Risk Factors
193
COVID-19
178
SARS-CoV-2
143
Prospective Studies
142
France
140
Time Factors
135
Cohort Studies
132
Follow-Up Studies
131
Surveys and Questionnaires
131
Child
127
Cross-Sectional Studies
119
Human health sciences
117
Sciences de la santé humaine
117
Registries
108
Prevalence
101
Preschool
100
Prognosis
97
Hospitalization
93
Infant
87
HIV Infections
77
Severity of Illness Index
74
Viral
68
Administration
62
Diabetes Mellitus
62
Comorbidity
60
Hospitals
59
Arthritis
58
Age Factors
57
Multivariate Analysis
57
Pandemics
52
Logistic Models
51
Netherlands
51
Physicians
51
Incidence
50
Mutation
50
Antibodies
49
Genotype
49
Health Care
49
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