title: Selection bias in case-control studies of severe varicella infection.
authors.forename: N S
authors.initials: NS
authors.lastname: Weiss
mesh_terms: D000305:Adrenal Cortex Hormones / Q000009:adverse effects*; D016022:Case-Control Studies; D002644:Chickenpox / Q000503:physiopathology*; D002648:Child; D006801:Humans; D015983:Selection Bias
chemical_list: D000305:Adrenal Cortex Hormones