title: Interpreting serological studies on severe acute respiratory syndrome: defining the reference.
authors.forename: Xin-chun
authors.initials: XC
authors.lastname: Chen
authors.forename: Yong-chang
authors.initials: YC
authors.lastname: Sun
mesh_terms: D000914:Antibodies, Viral / Q000097:blood*; D006801:Humans; D045473:Severe acute respiratory syndrome-related coronavirus / Q000276:immunology*; D045169:Severe Acute Respiratory Syndrome / Q000276:immunology*; D013602:T-Lymphocytes, Cytotoxic / Q000276:immunology
chemical_list: D000914:Antibodies, Viral