scientific article published on 15 September 2015
author: Jason W. Busse, Peter Tugwell, Philip G Conaghan, Niti Goel, Raymond W Ostelo, Damir Sapunar, Jasvinder Singh, Vibeke Strand, Anne Lyddiatt, George Wells, Lara J Maxwell, Dorcas E Beaton, Lee S Simon, Robin Christensen, Shawna Grosskleg, Clifton Bingham, Ulrike Kaiser, Kristine Phillips, Caroline B Terwee, Peter Jüni
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