No abstract available
MeSH terms
-
Aged
-
Antibodies, Viral / blood
-
China / epidemiology
-
DNA, Viral / isolation & purification
-
Esophageal Neoplasms / genetics
-
Esophageal Neoplasms / virology*
-
Female
-
Humans
-
Male
-
Middle Aged
-
Mutation
-
Papillomavirus Infections / epidemiology*
-
Polymerase Chain Reaction
-
Risk Factors
-
Smoking
-
Tumor Suppressor Protein p53 / genetics
-
Tumor Virus Infections / epidemiology*
Substances
-
Antibodies, Viral
-
DNA, Viral
-
Tumor Suppressor Protein p53