SRE	Skeletal-related event
BMA	Bone-modifying agent
RANKL	Receptor activator of NF-kappaB ligand
HR	Hormone receptor
HER2	Human epidermal growth factor receptor 2
Cdk4/6	Cyclin-dependent kinase 4/6
ECOG PS	Eastern Cooperative Oncology Group performance status
IHC	Immunohistochemistry
RT	Radiotherapy
NA	Not applicable
NR	Not reached
NE	Not-estimated
HR	Hazard ratio
CI	Confidence interval
OR	Odds ratio