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DNA
DNA, Viral
Base Sequence
RNA, Messenger
Pregnancy
DNA Methylation
Genotype
Maternal-Fetal Exchange
Prenatal Diagnosis
Polymerase Chain Reaction
Reverse Transcriptase Polymerase Chain Reaction
Fetuses
Plasma
Human Herpesvirus 4
SARS Virus
Sensitivity and Specificity
Molecular Sequence Data
Nasopharyngeal Neoplasms
Severe Acute Respiratory Syndrome
Single Nucleotide Polymorphism
Co-Publications
92
46
40
32
27
26
25
22
21
20
19
15
13
12
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