短語詞組短語Efficacy and observation 療效觀察therapeutic efficacy observation 療效觀察control efficacy observation 防治效果觀察Observation efficacy 療效觀察Observation of efficacy 療效觀察;觀察療效observation therapeutic efficacy 療效觀察observation on efficacy 效果的觀察comparative observation on efficacy 療效對照觀察 返回 efficacy observation