Table 4. PubMed and Web of Science search strategies.

Targeted records				Concept
Database	Year	Type	Language	Breast cancer	Metastases	Treatment	Restriction
PubMed	All	All	All	Breast cancer; OR breast carcinoma.	Peritoneal metastases	None	None
Web of Science	1990–2019	Articles	English	Breast cancer; OR breast carcinoma.	Peritoneal metastases; OR carcinomatosis; OR peritoneal spread; OR abdominal metastases.	Hyperthermic intraperitoneal chemotherapy; OR HIPEC; OR debulking; OR cytoreductive surgery.	NOT children