Armstrong J.J, Zhu M., Hirdes J.P, Stolee P..  2015.  Rehabilitation therapies for older clients of the Ontario home care system: regional variation and client-level predictors of service provision. Disability and rehabilitation. 37(7):625-631.

Armstrong J.J, Zhu M., Hirdes J.P, Stolee P..  2012.  K-means cluster analysis of rehabilitation service users in the Home Health Care System of Ontario: examining the heterogeneity of a complex geriatric population. Arch Phys Med Rehabil. 93(12):2198-205.

Armstrong J.J, Stolee P., Hirdes J.P, Poss J.W.  2010.  Examining three frailty conceptualizations in their ability to predict negative outcomes for home-care clients. Age Ageing. 39(6):755-8.