Differential Effectiveness of Placebo Treatments: A Systematic Review of Migraine Prophylaxis von Meissner, Karin, Fässler, Margrit, Rücker, Gerta, Kleijnen, Jos, Hróbjartsson, Asbjorn, Schneider, Antonius, Antes, Gerd, Linde, Klaus

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What are the main methodological problems in the estimation of placebo effects? von HROBJARTSSON, Asbjørn

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Bias due to lack of patient blinding in clinical trials. A systematic review of trials randomizing patients to blind and nonblind sub-studies von HROBJARTSSON, Asbjørn, EMANUELSSON, Frida, THOMSEN, Ann Sofia Skou, HILDEN, Jørgen, BRORSON, Stig

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Financial conflicts of interest in systematic reviews: associations with results, conclusions, and methodological quality von Hansen, Camilla, Lundh, Andreas, Rasmussen, Kristine, Hróbjartsson, Asbjørn, Hansen, Camilla

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Control interventions in randomised trials among people with mental health disorders: a Cochrane Review von Faltinsen, Erlend, Todorovac, Adnan, Staxen Bruun, Laura, Hróbjartsson, Asbjørn, Gluud, Christian, Kongerslev, Mickey T., Simonsen, Erik, Storebø, Ole Jakob

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Minimum clinically important differences in chronic pain vary considerably by baseline pain and methodological factors: systematic review of empirical studies von Olsen, Mette Frahm, Bjerre, Eik, Hansen, Maria Damkjær, Tendal, Britta, Hilden, Jørgen, Hróbjartsson, Asbjørn

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Meta-epidemiology and the MetaBLIND study: Response to Tack von Moustgaard, Helene, Hróbjartsson, Asbjørn

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Placebo interventions for all clinical conditions von Hróbjartsson, Asbjørn, Gøtzsche, Peter C, Hróbjartsson, Asbjørn

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Empirical Evidence of Study Design Biases in Randomized Trials: Systematic Review of Meta-Epidemiological Studies von Page, Matthew J, Higgins, Julian P T, Clayton, Gemma, Sterne, Jonathan A C, Hróbjartsson, Asbjørn, Savović, Jelena

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European Society Paediatric Gastroenterology, Hepatology and Nutrition Guidelines for Diagnosing Coeliac Disease 2020 von Husby, Steffen, Koletzko, Sibylle, Korponay‐Szabó, Ilma, Kurppa, Kalle, Mearin, Maria Luisa, Ribes‐Koninckx, Carmen, Shamir, Raanan, Troncone, Riccardo, Auricchio, Renata, Castillejo, Gemma, Christensen, Robin, Dolinsek, Jernej, Gillett, Peter, Hróbjartsson, Asbjørn, Koltai, Tunde, Maki, Markku, Nielsen, Sabrina Mai, Popp, Alina, Størdal, Ketil, Werkstetter, Katharina, Wessels, Margreet

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Promoting public access to clinical trial protocols: challenges and recommendations von Chan, An-Wen, Hróbjartsson, Asbjørn

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The PRISMA 2020 statement: An updated guideline for reporting systematic reviews von Page, Matthew J., McKenzie, Joanne E., Bossuyt, Patrick M., Boutron, Isabelle, Hoffmann, Tammy C., Mulrow, Cynthia D., Shamseer, Larissa, Tetzlaff, Jennifer M., Akl, Elie A., Brennan, Sue E., Chou, Roger, Glanville, Julie, Grimshaw, Jeremy M., Hróbjartsson, Asbjørn, Lalu, Manoj M., Li, Tianjing, Loder, Elizabeth W., Mayo-Wilson, Evan, McDonald, Steve, McGuinness, Luke A., Stewart, Lesley A., Thomas, James, Tricco, Andrea C., Welch, Vivian A., Whiting, Penny, Moher, David

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Observer bias in randomized clinical trials with measurement scale outcomes: a systematic review of trials with both blinded and nonblinded assessors von Hróbjartsson, Asbjørn, Thomsen, Ann Sofia Skou, Emanuelsson, Frida, Tendal, Britta, Hilden, Jørgen, Boutron, Isabelle, Ravaud, Philippe, Brorson, Stig

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The PRISMA 2020 statement: an updated guideline for reporting systematic reviews von Page, Matthew J, McKenzie, Joanne E, Bossuyt, Patrick M, Boutron, Isabelle, Hoffmann, Tammy C, Mulrow, Cynthia D, Shamseer, Larissa, Tetzlaff, Jennifer M, Akl, Elie A, Brennan, Sue E, Chou, Roger, Glanville, Julie, Grimshaw, Jeremy M, Hróbjartsson, Asbjørn, Lalu, Manoj M, Li, Tianjing, Loder, Elizabeth W, Mayo-Wilson, Evan, McDonald, Steve, McGuinness, Luke A, Stewart, Lesley A, Thomas, James, Tricco, Andrea C, Welch, Vivian A, Whiting, Penny, Moher, David

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The PRISMA 2020 statement: An updated guideline for reporting systematic reviews von Page, Matthew J, McKenzie, Joanne E, Bossuyt, Patrick M, Boutron, Isabelle, Hoffmann, Tammy C, Mulrow, Cynthia D, Shamseer, Larissa, Tetzlaff, Jennifer M, Akl, Elie A, Brennan, Sue E, Chou, Roger, Glanville, Julie, Grimshaw, Jeremy M, Hróbjartsson, Asbjørn, Lalu, Manoj M, Li, Tianjing, Loder, Elizabeth W, Mayo-Wilson, Evan, McDonald, Steve, McGuinness, Luke A, Stewart, Lesley A, Thomas, James, Tricco, Andrea C, Welch, Vivian A, Whiting, Penny, Moher, David

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Pain relief that matters to patients: systematic review of empirical studies assessing the minimum clinically important difference in acute pain von Olsen, Mette Frahm, Bjerre, Eik, Hansen, Maria Damkjær, Hilden, Jørgen, Landler, Nino Emanuel, Tendal, Britta, Hróbjartsson, Asbjørn

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Systematic review adherence to methodological or reporting quality von Pussegoda, Kusala, Turner, Lucy, Garritty, Chantelle, Mayhew, Alain, Skidmore, Becky, Stevens, Adrienne, Boutron, Isabelle, Sarkis-Onofre, Rafael, Bjerre, Lise M, Hróbjartsson, Asbjørn, Altman, Douglas G, Moher, David

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RoB 2: a revised tool for assessing risk of bias in randomised trials von Sterne, Jonathan A C, Savović, Jelena, Page, Matthew J, Elbers, Roy G, Blencowe, Natalie S, Boutron, Isabelle, Cates, Christopher J, Cheng, Hung-Yuan, Corbett, Mark S, Eldridge, Sandra M, Emberson, Jonathan R, Hernán, Miguel A, Hopewell, Sally, Hróbjartsson, Asbjørn, Junqueira, Daniela R, Jüni, Peter, Kirkham, Jamie J, Lasserson, Toby, Li, Tianjing, McAleenan, Alexandra, Reeves, Barnaby C, Shepperd, Sasha, Shrier, Ian, Stewart, Lesley A, Tilling, Kate, White, Ian R, Whiting, Penny F, Higgins, Julian P T

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Adherence to the PRISMA-P 2015 reporting guideline was inadequate in systematic review protocols von Frost, Anders Dreyer, Hróbjartsson, Asbjørn, Nejstgaard, Camilla Hansen

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Guidelines for Reporting Reliability and Agreement Studies (GRRAS) were proposed von Kottner, Jan, Audigé, Laurent, Brorson, Stig, Donner, Allan, Gajewski, Byron J, Hróbjartsson, Asbjørn, Roberts, Chris, Shoukri, Mohamed, Streiner, David L

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