title: Research gap of guidelines might be an important approach to prioritization (Letter commenting on: J Clin Epidemiol. 2015;68:341-6).
authors.affiliation: Evidence-Based Medicine Center, School of Basic Medical Sciences, Lanzhou University, No. 199, Donggang West Road, Chengguan District, Lanzhou, Gansu 730000, Peoples' Republic of China; Key Laboratory of Evidence Based Medicine and Knowledge Translation of Gansu Province, No. 199, Donggang West Road, Chengguan District, Lanzhou, Gansu 730000, Peoples' Republic of China.
authors.forename: Qi
authors.initials: Q
authors.lastname: Wang
authors.affiliation: Evidence-Based Medicine Center, School of Basic Medical Sciences, Lanzhou University, No. 199, Donggang West Road, Chengguan District, Lanzhou, Gansu 730000, Peoples' Republic of China; Key Laboratory of Evidence Based Medicine and Knowledge Translation of Gansu Province, No. 199, Donggang West Road, Chengguan District, Lanzhou, Gansu 730000, Peoples' Republic of China.
authors.forename: Xiaoqin
authors.initials: X
authors.lastname: Wang
authors.affiliation: Evidence-Based Medicine Center, School of Basic Medical Sciences, Lanzhou University, No. 199, Donggang West Road, Chengguan District, Lanzhou, Gansu 730000, Peoples' Republic of China; Key Laboratory of Evidence Based Medicine and Knowledge Translation of Gansu Province, No. 199, Donggang West Road, Chengguan District, Lanzhou, Gansu 730000, Peoples' Republic of China.
authors.forename: Yaolong
authors.initials: Y
authors.lastname: Chen
authors.affiliation: Evidence-Based Medicine Center, School of Basic Medical Sciences, Lanzhou University, No. 199, Donggang West Road, Chengguan District, Lanzhou, Gansu 730000, Peoples' Republic of China; Key Laboratory of Evidence Based Medicine and Knowledge Translation of Gansu Province, No. 199, Donggang West Road, Chengguan District, Lanzhou, Gansu 730000, Peoples' Republic of China. Electronic address: kehuyangebm2006@126.com.
authors.forename: Kehu
authors.initials: K
authors.lastname: Yang
mesh_terms: D003657:Decision Making; D019317:Evidence-Based Medicine / Q000592:standards*; D006292:Health Priorities / Q000592:standards*; D006301:Health Services Needs and Demand / Q000592:standards*; D006801:Humans; D017410:Practice Guidelines as Topic; D012196:Review Literature as Topic