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。
The use of these complementary and alternative therapies has become a multi-billion dollar industry that is expected to continue its rapid growth.
这些补充和替代疗法现已成为数十亿美元的行业，而且预计这一行业将继续迅速增长。
Do alternative and complementary therapies for HIV and AIDS work?
治疗HIV与AIDS的替代和补充疗法有效吗？
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