Correction: Protocol for Compass: a randomised controlled trial of primary HPV testing versus cytology screening for cervical cancer in HPV-unvaccinated and vaccinated women aged 25–69 years living in Australia

Acknowledgments We would like to thank the following associate investigators for their contribution to the Compass trial: Mr David H Wrede, Dr Jeff Tan, Dr Siobhan Bourke, Dr Lara Roeske, Dr Jane Collins, Sandy Anderson and Associate Professor Sally Lord. We would also like to acknowledge the following Scientific Advisory Committee members: Professor Bruce Armstrong, Professor Suzanne Garland, Professor Jonathan Carter, Associate Professor Rachel Skinner, Dr Deborah Bateson, Professor Andrew Grulich, Dr Eduardo Franco, Ms Bridget Whelan (sadly deceased), Associate Professor Annabelle Farnsworth and Ms Susan Taylor. In addition, we would like to acknowledge the following members of the Independent Data Safety and Monitoring Committee: Professor Michael Quinn, Associate Professor Katrina Sharples, Dr Penny Blomfield, Dr Gordon Wright and the secretariat at NHMRC Clinical Trials Centre. Finally, we would like to thank Dr David Hawkes and Ms Chloe Jennett for their contribution to the trial and Dr Louiza S Velentzis for coordinating the authoring of this manuscript.