Table 1 Eligibility criteria
From: Diagnostic value of serum HER2 levels in breast cancer: a systematic review and meta-analysis
Inclusion criteria | Exclusion criteria |
|---|---|
• human diagnostic studies reported the level of serum HER2 in breast cancer patients | • Non-human subjects |
• Studies confirmed the breast cancer using immunohistopathological examination | • Conference abstracts |
• Studies reported the sensitivity and specificity of serum HER2 level or comprised with data could to calculate the desiered parameters mentioned in data extraction section | • Grey literature |
• Comments | |
• Full text published papers | • Letters |
• English language | • Reviews |
• Case reports | |
• In vitro studies | |
• Ecological studies | |
• Duplicate publications | |
• Studies with insufficient data |