Retraction Note: Sub-second periodicity in a fast radio burst

B Bridget C. Andersen K Kevin Bandura M Mohit Bhardwaj P P. J. Boyle C Charanjot Brar D Daniela Breitman T Tomas Cassanelli S Shami Chatterjee P Pragya Chawla J Jean-François Cliche D Davor Cubranic A Alice P. Curtin M Meiling Deng M Matt Dobbs F Fengqiu Adam Dong E Emmanuel Fonseca B B. M. Gaensler U Utkarsh Giri D Deborah C. Good A Alex S. Hill A Alexander Josephy J J. F. Kaczmarek Z Zarif Kader J Joseph Kania V Victoria M. Kaspi C Calvin Leung D D. Z. Li H Hsiu-Hsien Lin K Kiyoshi W. Masui R Ryan Mckinven J Juan Mena-Parra M Marcus Merryfield B B. W. Meyers D D. Michilli A Arun Naidu L Laura Newburgh C C. Ng A Anna Ordog C Chitrang Patel A Aaron B. Pearlman U Ue-Li Pen E Emily Petroff Z Ziggy Pleunis M Masoud Rafiei-Ravandi M Mubdi Rahman S Scott Ransom A Andre Renard P Pranav Sanghavi P Paul Scholz J J. Richard Shaw K Kaitlyn Shin S Seth R. Siegel S Saurabh Singh K Kendrick Smith I Ingrid Stairs C Chia Min Tan S Shriharsh P. Tendulkar K Keith Vanderlinde D D. V. Wiebe D Dallas Wulf A Andrew Zwaniga