Table 1. Primary metastatic breast cancer samples.

Sample ID	Histology	Source	Grade	ER	PgR	Her2
BB3RC30	IDC	PE	2	Pos	Pos	UN
BB3RC33	ILC	AS	2	Pos	Pos	Pos
BB3RC36	IDC	PE	2	Pos	Pos	UN
BB3RC37	IDC	PE	UN	Neg	Neg	Neg
BB3RC38	IDC	AS	3	Neg	Neg	Neg
BB3RC39	IDC	PE	3	Neg	Neg	Neg

Details of primary breast cancer samples used in this study. UN unknown, PE pleural effusion, AS Ascites sample IDC invasive ductal carcinoma, ILC invasive lobular carcinoma, ER oestrogen receptor alpha, PgR progesterone receptor, Neg negative, Pos positive.