Performing serial testing of treatment effects.
D001943:Breast Neoplasms / Q000401:mortality / Q000628:therapy*; D002986:Clinical Trials as Topic; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D009369:Neoplasms / Q000401:mortality / Q000628:therapy*; D011379:Prognosis; D011788:Quality of Life; D012107:Research Design; D013223:Statistics as Topic; D013997:Time Factors