LaboratoryofReproductiveImmunology;
Gynecologic&ObstetricInstitute;
ShanghaiMedicalCollege;
FudanUniversity;
Shanghai200011;
China;
KeyLaboratoryofMedicalMolecularVirology;
MinistryofEducationandHealth;
ShanghaiMedicalCollege;
FudanUniversity;
Shanghai200032;
China;