Evaluation of Daptomycin and Fosfomycin Combination on Vancomycin-Resistant Enterococcal Bloodstream Infection: from in Vitro Experiments and in Vivo Animal Models to Clinical Implications (II) = 評估合併使用達托黴素及弗斯黴素於萬古黴素抗藥性腸球菌菌血症的治療: 從體外試驗,動物模型到臨床應用 (II)