Roberts, C. T., Owen, L. S., Manley, B. J., Donath, S. M., & Davis, P. G. (2015). A multicentre, randomised controlled, non-inferiority trial, comparing high flow therapy with nasal continuous positive airway pressure as primary support for preterm infants with respiratory distress (the HIPSTER trial): Study protocol. BMJ Open.

Roberts, Calum T., Louise S. Owen, Brett J. Manley, Susan M. Donath, et Peter G. Davis. "A Multicentre, Randomised Controlled, Non-inferiority Trial, Comparing High Flow Therapy With Nasal Continuous Positive Airway Pressure As Primary Support for Preterm Infants With Respiratory Distress (the HIPSTER Trial): Study Protocol." BMJ Open 2015.

Roberts, Calum T., et al. "A Multicentre, Randomised Controlled, Non-inferiority Trial, Comparing High Flow Therapy With Nasal Continuous Positive Airway Pressure As Primary Support for Preterm Infants With Respiratory Distress (the HIPSTER Trial): Study Protocol." BMJ Open 2015.