RT Journal T1 Statistical concepts related to negative clinical results A1 Wei Chen, Guo-hua Zheng, Jian-ping Liu PB Journal of Integrative Medicine FD 2011-05-20 YR 2011 JF Journal of Integrative Medicine JO Journal of Integrative Medicine VO 9 IS 5 SP 487 DO 10.3736/jcim20110504 K1 ;negative results;P value;power;confidence interval LK {http://www.jcimjournal.com/EN/article/article_781.shtml}