RT Journal T1 How to choose an appropriate experimental design type (Part 1) A1 Liang-ping Hu, Xiao-lei Bao PB Journal of Integrative Medicine FD 2012-06-20 YR 2012 JF Journal of Integrative Medicine JO Journal of Integrative Medicine VO 10 IS 6 SP 615 DO 10.3736/jcim20120603 K1 ;statistics;medical;research design;matched-pair analysis;factor analysis;statistical LK {http://www.jcimjournal.com/EN/article/article_1110.shtml}