title: [Relationship between the 'Real World' research, randomized controlled trial and number of one randomized controlled trial in clinical therapeutic study].
authors.affiliation: Evidence-Based Center of Liaoning Province, Department of Clinical Epidemiology, the First Affiliated Hospital, China Medical University, Shenyang 110001, China.
authors.forename: Min
authors.initials: M
authors.lastname: Li
authors.forename: Jing-pu
authors.initials: JP
authors.lastname: Shi
authors.forename: Hui-hui
authors.initials: HH
authors.lastname: Yu
mesh_terms: D035843:Biomedical Research; D006801:Humans; D016032:Randomized Controlled Trials as Topic; D012107:Research Design