Although numerous studies have been promising, there are scant data from randomizedclinicaltrials.
尽管许多研究都已经表明，但还缺少随机临床试验的佐证。
2
Observational studies are often misleading. Once randomizedclinicaltrials are finally completed, it may turn out that chocolate does not actually produce much of a cardiac benefit after all.
观测研究常常会误导。一旦随机临床试验最终结束，也许结果巧克力根本不会产生很多心脏的益处。
3
Once randomizedclinicaltrials are finally completed, it may turn out that chocolate does not actually produce much of a cardiac benefit after all.