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Article
2
China
2
Humans
2
cohort analysis
2
human
2
observational study
2
sample size
Adolescent
1
Adult
1
Age Factors
1
Antigens, Neoplasm
1
Biomarkers, Tumor
1
CEACAM5 protein, human
1
COVID-19
1
Carcinoembryonic Antigen
1
Carrier Proteins
1
Cohort Studies
1
Contact Tracing
1
Contact tracing
1
Coronavirus
1
Female
1
GPI-Linked Proteins
1
Geography
1
Hong Kong
1
Immunoassay
1
Keratin-19
1
Likelihood Functions
1
Lung Neoplasms
1
Male
1
Middle Aged
1
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1
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2