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JAMA Guide to Statistics and Methods
Interpretation of Clinical Trials That Stopped Early
Kert Viele, PhD; Anna McGlothlin, PhD; Kristine Broglio, MS
JAMA
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Preliminary Communication
Conservative vs Conventional Oxygen and ICU Mortality
Massimo Girardis, MD; Stefano Busani, MD; Elisa Damiani, MD; Abele Donati, MD; Laura Rinaldi, MD; Andrea Marudi, MD; Andrea Morelli, MD; Massimo Antonelli, MD; Mervyn Singer, MD, FRCA
JAMA
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Original Investigation
Effect of Dexamethasone on Ventilator-Free Days in Patients With Moderate or Severe COVID-19–Related ARDS
Bruno M. Tomazini, MD; Israel S. Maia, MD, MSc; Alexandre B. Cavalcanti, MD, PhD; Otavio Berwanger, MD, PhD; Regis G. Rosa, MD, PhD; Viviane C. Veiga, MD, PhD; Alvaro Avezum, MD, PhD; Renato D. Lopes, MD, PhD; Flavia R. Bueno, MSc; Maria Vitoria A. O. Silva; Franca P. Baldassare; Eduardo L. V. Costa, MD, PhD; Ricardo A. B. Moura, MD; Michele O. Honorato, MD; Andre N. Costa, MD, PhD; Lucas P. Damiani, MSc; Thiago Lisboa, MD, PhD; Letícia Kawano-Dourado, MD, PhD; Fernando G. Zampieri, MD, PhD; Guilherme B. Olivato, MD; Cassia Righy, MD, PhD; Cristina P. Amendola, MD; Roberta M. L. Roepke, MD; Daniela H. M. Freitas, MD; Daniel N. Forte, MD, PhD; Flávio G. R. Freitas, MD, PhD; Caio C. F. Fernandes, MD; Livia M. G. Melro, MD; Gedealvares F. S. Junior, MD; Douglas Costa Morais; Stevin Zung, MD, PhD; Flávia R. Machado, MD, PhD; Luciano C. P. Azevedo, MD, PhD; COALITION COVID-19 Brazil III Investigators
JAMA
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Original Investigation
Effect of e-Cigarettes Plus Counseling vs Counseling Alone on Smoking Cessation
Mark J. Eisenberg, MD, MPH; Andréa Hébert-Losier, MSc; Sarah B. Windle, MPH; Todd Greenspoon, MD; Tim Brandys, MD; Tamàs Fülöp, MD, PhD; Thang Nguyen, MD; Stéphane Elkouri, MD; Martine Montigny, MD; Igor Wilderman, MD; Olivier F. Bertrand, MD, PhD; Joanna Alexis Bostwick, MD; John Abrahamson, MD; Yves Lacasse, MD; Smita Pakhale, MD; Josselin Cabaussel, MSc; Kristian B. Filion, PhD; E3 Investigators
JAMA
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Special Communication
CONSERVE Guidelines for Trials Modified Due to Extenuating Circumstances
Aaron M. Orkin, MD, MSc, MPH; Peter J. Gill, MD, DPhil; Davina Ghersi, MD, PhD; Lisa Campbell, MD, MBBCh, BSc; Jeremy Sugarman, MD, MPH, MA; Richard Emsley, PhD; Philippe Gabriel Steg, MD; Charles Weijer, MD, PhD; John Simes, MBBS, MD; Tanja Rombey, MPH; Hywel C. Williams, DSc; Janet Wittes, PhD; David Moher, PhD; Dawn P. Richards, PhD; Yvette Kasamon, MD; Kenneth Getz, MBA; Sally Hopewell, MSc, DPhil; Kay Dickersin, MA, PhD; Taixiang Wu, MPH; Ana Patricia Ayala, MISt; Kenneth F. Schulz, PhD; Sabine Calleja, MI; Isabelle Boutron, MD, PhD; Joseph S. Ross, MD, MHS; Robert M. Golub, MD; Karim M. Khan, MD, PhD; Cindy Mulrow, MD, MSc; Nandi Siegfried, PhD, MPH; Joerg Heber, PhD; Naomi Lee, MD; Pamela Reed Kearney, MD; Rhoda K. Wanyenze, MBChB, MPH, PhD; Asbjørn Hróbjartsson, MD, PhD, MPhil; Rebecca Williams, PharmD, MPH; Nita Bhandari, PhD; Peter Jüni, MD; An-Wen Chan, MD, DPhil; CONSERVE Group; Aaron M. Orkin; Peter J. Gill; Davina Ghersi; Lisa Campbell; Jeremy Sugarman; Richard Emsley; Philippe Gabriel Steg; Charles Weijer; John Simes; Tanja Rombey; Hywel C. Williams; Janet Wittes; David Moher; Dawn P. Richards; Yvette Kasamon; Kenneth Getz; Sally Hopewell; Kay Dickersin; Taixiang Wu; Ana Patricia Ayala; Kenneth F. Schulz; Sabine Calleja; Isabelle Boutron; Joseph S. Ross; Robert M. Golub; Karim M. Khan; Cindy Mulrow; Nandi Siegfried; Joerg Heber; Naomi Lee; Pamela Reed Kearney; Rhoda K. Wanyenze; Asbjørn Hróbjartsson; Rebecca Williams; Nita Bhandari; Peter Jüni; An-Wen Chan; Veronique Kiermer; Jacqueline Corrigan-Curay; John Concato
JAMA
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JAMA Guide to Statistics and Methods
Interim Analyses During Group Sequential Clinical Trials
William J. Meurer, MD, MS; Juliana Tolles, MD, MHS
JAMA