Table S2. Detailed information and treatment of brain metastases.

Metastases and intervention	Total (n=18)
1 metastasis	13 (72.2%)
Surgery†	5
SRS†	6
Surgery + WBRT†	1
Surgery + SRS†	1
2 metastases	2 (11.1%)
SRS†	2
3 metastases	3 (16.7%)
SRS†	3

^†, curative local treatment. SRS, stereotactic radiotherapy; WBRT, whole brain radiotherapy.