Table 1.

Search strategy in PubMed.

Strategy	Search string
1	“Virtual Reality”[Mesh] OR VR OR “virtual reality” OR “virtual environment” OR “head-mounted display” OR “virtual reality goggle”
2	“Breast Neoplasms”[Mesh] OR “breast neoplasms” OR “breast neoplasm” OR “breast tumors” OR “breast tumor” OR “breast cancer” OR “mammary cancer” OR “mammary cancers” OR “Breast Malignant Neoplasm” OR “Breast Malignant Neoplasms” OR “Malignant Tumor of Breast” OR “Breast Malignant Tumor” OR “Breast Malignant Tumors” OR “Cancer of Breast” OR “Cancer of the Breast” OR “Mammary Carcinoma” OR “Human Mammary Carcinomas” OR “Human Mammary Carcinoma” OR “Mammary Neoplasms” OR “Human Mammary Neoplasm” OR “Human Mammary Neoplasms” OR “Mammary Neoplasm” OR “Breast Carcinoma” OR “Breast Carcinomas”
3	#1 AND #2