方法：采用随机双盲、平行对照临床试验方法。
Methods: A randomized, placebo contmlled, double blind trial was used.
方法：本研究采用随机、对照、单盲临床试验方法。
Method: the research used the random contrast and single-blinded test.
方法采取平行组设计、分层随机、双盲、多中心临床试验方法。
Methods parallel group, stratified randomization, double blinded, muti-center clinical trail was designed.
学科课程包括生物统计学，健康研究的计算机应用，临床试验方法和相关科目。
The program is likely to include courses in biostatistics, computer applications for health research, clinical trial methodology, and related subjects.
方法分组与治疗通过单中心、随机、空白对照临床试验方法，分为腹针组20例、空白组20例。
MethodsGrouping and treatment: through single center, stochastic, blank comparison clinical trial method, divides into the abdomen acupuncture group 20 examples, the blank group 20 examples.
方法分组与治疗通过单中心、随机、空白对照临床试验方法，分为腹针组20例、空白组20例。
MethodsGrouping and treatment: through single center, stochastic, blank comparison clinical trial method, divides into the abdomen acupuncture group 20 examples, the blank group 20 examples.
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