16.有關療效,下列那種臨床試驗設計之證據力(strength)最強?
(A)randomized controlled study
(B)cohort study
(C)case-control study
(D)case report
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統計: A(4778), B(124), C(60), D(43), E(0) #1742905
統計: A(4778), B(124), C(60), D(43), E(0) #1742905