# Retraction: A phase II, single-arm study of apatinib and oral etoposide in heavily pre-treated metastatic breast cancer

PMC · DOI: 10.3389/fonc.2026.1798367 · Frontiers in Oncology · 2026-02-10

## Full-text entities

- **Diseases:** breast cancer (MESH:D001943)
- **Chemicals:** etoposide (MESH:D005047), apatinib (MESH:C553458)
- **Species:** Homo sapiens (human, species) [taxon 9606]

## Full text

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Source: https://tomesphere.com/paper/PMC12930266