Advanced search×

Comparative effectiveness reviews need to pay as much attention to external validity as to internal validity risks of bias.

Peter P Tugwell, André A Knottnerus, and Leanne L Idzerda

J Clin Epidemiol 64(11):1163-5 (2011) PMID 21959052

Copyright © 2011 Elsevier Ltd. All rights reserved.

DOI: 10.1016/j.jclinepi.2011.08.005
Version: za2963e q8za5 q8zb2 q8zcd q8zd6 q8ze8 q8zfd q8zg8
Buy PDF

Similar articles you may find interesting…

  1. Factors associated with readmission following plastic surgery- a review of 10,669 procedures from 2011 American College of Surgeons Nation S...
    John P Fischer, Ari Wes, and Stephen J Kovach

    Plast Reconstr Surg (2013) PMID 23676965

    : A total of 10,669 patients were included with a 4.5% readmission rate. The study cohort was on average 49.5 years of age, 32.2% were obese, and 15.2% were smokers. The majority of patients were female (81.7%). Cases were predominantly outpatient procedures (65.6%). The most commonly performed proce...
    Buy PDF
  2. A Randomized Controlled Trial comparing the efficacy of low-dose amitriptyline, amitriptyline with pindolol and surrogate placebo in the tre...
    A M Agius, N S Jones, and R Muscat

    Rhinology 51(2):143-53 (2013) PMID 23671895

    Patients often present to otolaryngologists with chronic facial pain, presumed to be of sinus origin despite normal nasal endoscopy and sinus CT. This pain has increasingly been recognized as being of neurological origin with one of the commonest underlying causes being mid-facial se...
    Buy PDF
  3. Factors associated with reduced efficacy of sitagliptin therapy: analysis of 93 patients with type 2 diabetes treated for 1.5 years or longe...
    Akira Kanamori and Ikuro Matsuba

    J Clin Med Res 5(3):217-21 (2013) PMID 23671547

    Several studies have shown the effectiveness of sitagliptin, a dipeptidyl peptidase-4 inhibitor, for type 2 diabetes, with a hypoglycemic effect being demonstrated both when it is administered alone or in combination with other oral antidiabetic agents. However, there are few reports...
    PDF not found