For example, senior politicians in South Africa have promoted unproven therapies while at times disparaging antiretroviral drugs.
例如南非某些资深政客鼓吹未经证实的疗法，并同时贬低抗逆转录病毒治疗。
The longer that unproven therapies stay on the market, the greater is the risk that a history of use can be framed as evidence of safety and efficacy.
未经检验的干细胞疗法在市场上停留的时间越长，那些使用历史被做为其安全性和有效性的证明的风险就越大。
By definition, complementary and alternative medicine consists of therapies that are unproven, at least by the standards of Western medicine.
根据定义，补充和替代疗法包括那些未经验证的，至少是不为西方医学标准所验证的方法。
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