Bignold, J. J., Deans-Costi, G., Goldsworthy, M. R., Robertson, C. A., McEvoy, D., Catcheside, P. G., & Mercer, J. D. (2009). Poor Long-Term Patient Compliance with the Tennis Ball Technique for Treating Positional Obstructive Sleep Apnea. American Academy of Sleep Medicine.

Bignold, James J., Georgina Deans-Costi, Mitchell R. Goldsworthy, Claire A. Robertson, Douglas McEvoy, Peter G. Catcheside, and Jeremy D. Mercer. Poor Long-Term Patient Compliance With the Tennis Ball Technique for Treating Positional Obstructive Sleep Apnea. American Academy of Sleep Medicine, 2009.

Bignold, James J., et al. Poor Long-Term Patient Compliance With the Tennis Ball Technique for Treating Positional Obstructive Sleep Apnea. American Academy of Sleep Medicine, 2009.