[Some suggestions on clinical study of traditional Chinese medicine]

According to the international accepted criteria, some suggestions were provided in this paper on the clinical study of traditional Chinese medicine. Firstly, allocate the participants randomly, rather than deliberately perform that to balance the baseline characteristics in groups. Secondly, use the international standard to evaluate the clinical effectiveness, rather than just use the simple criteria as cure rate, markedly effective rate, and effective rate. Thirdly, record and manage the missing data with proper statistical methods. Fourthly, objectively report the results of study, especially avoiding selective bias. In addition, the low limit effects should be avoided when assessing the effects of TCM in treating difficult and uncertain diseases; furthermore, the ethical problems should also be considered.