GRADE guidelines 27: how to calculate absolute effects for time-to-event outcomes in summary of findings tables and Evidence Profiles by Skoetz, N, Goldkuhle, M, van Dalen, EC, Akl, EA, Trivella, M, Mustafa, RA, Nowak, A, Dahm, P, Schünemann, H, Bender, R, GRADE Working Group

GRADE Guidelines: 29. Rating the certainty in time-to-event outcomes—Study limitations due to censoring of participants with missing data in intervention studies by Goldkuhle, M, Bender, R, Akl, EA, van Dalen, EC, Nevitt, S, Mustafa, RA, Guyatt, GH, Trivella, M, Djulbegovic, B, Schünemann, H, Cinquini, M, Kreuzberger, N, Skoetz, N

Potential impact on estimated treatment effects of information lost to follow-up in randomised controlled trials (LOST-IT): systematic review by Akl, EA, Briel, M, You, JJ, Sun, X, Johnston, BC, Busse, JW, Mulla, S, Lamontagne, F, Bassler, D, Vera, C, Alshurafa, M, Katsios, CM, Zhou, Q, Cukierman-Yaffe, T, Gangji, A, Mills, EJ, Walter, SD, Cook, DJ, Schünemann, HJ, Altman, DG, Guyatt, GH

Update Alert 3: ventilation techniques and risk for transmission of coronavirus disease, including COVID-19 by Ute Muti-Schüenemann, GE, Szczeklik, W, Solo, K, Khabsa, J, Thomas, R, Borowiack, E, Khamis, AM, Hneiny, L, Darzi, A, Harrison, L, Bak, A, Bongnanni, A, Morgano, GP, Stalteri, R, Hajizadeh, A, Lotfi, T, Reinap, M, Rochwerg, B, Akl, EA, Schünemann, HJ

Credibility of claims of subgroup effects in randomised controlled trials: systematic review by Sun, X, Briel, M, Busse, JW, You, JJ, Akl, EA, Mejza, F, Bala, MM, Bassler, D, Mertz, D, Diaz-Granados, N, Vandvik, PO, Malaga, G, Srinathan, SK, Dahm, P, Johnston, BC, Alonso-Coello, P, Hassouneh, B, Walter, SD, Heels-Ansdell, D, Bhatnagar, N, Altman, DG, Guyatt, GH

AGREE-S: AGREE II extension for surgical interventions – United European Gastroenterology and European Association for Endoscopic Surgery methodological guide by Logullo, P, Florez, ID, Antoniou, GA, Markar, S, López‐Cano, M, Silecchia, G, Tsokani, S, Mavridis, D, Brouwers, M, Antoniou, SA, Sami Abdel Dayem Amer, Y, Bertolaccini, L, Alonso‐Coello, P, Akl, EA, Chand, M, Como, JJ, Borst, GJ, Di Saverio, S, Emile, S, Eom, BW, Gorter, R, Hanna, G, Immonen, K, Lai, Q, Lumen, N, Mathew, JL, Montendori, A, Moya, M, Pellino, G, Sanabria, A, Saratzis, A, Smart, N, Stefanidis, D, Zaninotto, G