Statement: substance usage start relative to reference timepoint is an indication or description of the start of substance usage in relation to a specific point in time. the primary trial participants receive more than one type of medication during the study.
Primary_evidence: INTERVENTION 1:    Avastin (Bevacizumab) Plus Hormone   All patients received Avastin (Bevacizumab) 15 mg/kg IV every three weeks as well as continuing with hormonal therapy they previously were taking.