Comparative clinical trials with historical controls: a statistician's view.
D000328:Adult; D001859:Bone Neoplasms / Q000628:therapy; D001943:Breast Neoplasms / Q000628:therapy; D002986:Clinical Trials as Topic; D004992:Ethics, Medical; D005260:Female; D006801:Humans; D009369:Neoplasms / Q000628:therapy*; D012516:Osteosarcoma / Q000628:therapy; D011379:Prognosis; D011897:Random Allocation; D012107:Research Design; D013223:Statistics as Topic