title: A note on the evaluation of BoNTA trial quality.
abstract: In their systematic review, Zhang et al. evaluate randomized controlled trials on the efficacy of Botulinum toxin type A (BoNTA) in helping patients with musculoskeletal disorders. Scoring each trial according to the Jadad scale they note that the studies range from 1 to 5 with an average of 4.1, which they interpret as a testimony of the high quality of the studies included. Unfortunately, we cannot share the author's enthusiasm, as a perfect Jadad score of 5 is no guarantee that a study is of good quality.
authors.forename: Vance W
authors.initials: VW
authors.lastname: Berger
authors.forename: Diana
authors.initials: D
authors.lastname: Knoll
mesh_terms: D019274:Botulinum Toxins, Type A / Q000627:therapeutic use*; D006801:Humans; D009140:Musculoskeletal Diseases / Q000188:drug therapy*; D009141:Musculoskeletal System / Q000187:drug effects*; D010146:Pain / Q000188:drug therapy*
chemical_list: D019274:Botulinum Toxins, Type A