Table 1.

The Subtyping Schemes

Groups Name	How is the Classification Made?	Group Branches
Subtyping 1	Subtype Triple-Negative	Triple-Negative Not-Triple Negative
Subtyping 2	Original Subtype	Triple-Negative Luminal A Luminal B HER2-enriched
Subtyping 3	SubtypeHER2-enriched (received Herceptin)	Triple-Negative Luminal A Luminal B HER2-enriched (received Herceptin) HER2-enriched (did not receive Herceptin)
Subtyping 4	Subtype HER2 positive-negative	Triple-Negative Luminal A Luminal B HER2 positive Luminal B HER2 negative HER2-enriched (received Herceptin) HER2-enriched (did not receive Herceptin)
Subtyping 5	Subtype received Herceptin	Luminal B (received Herceptin) Luminal B (did not receive Herceptin) HER2-enriched (received Herceptin) HER2-enriched (did not receive Herceptin) HER2 negative