Baller M, Boorsma M, Frijters DHM, van Marwijk HWJ, Nijpels G, van Hout HPJ.  2010.  Depression in Dutch homes for the elderly: under?diagnosis in demented residents? International journal of geriatric psychiatry. 25(7):712-718.

Boorsma M, van Hout HPJ, Frijters DH, Ribbe MW, Nijpels G.  2008.  The cost-effectiveness of a new disease management model for frail elderly living in homes for the elderly, design of a cluster randomized controlled clinical trial. BMC Health Services Research. 8(1):143.

Hoogendijk EO, Onder G, Smalbil L, Vetrano DL, Hirdes JP, Howard EP, Morris JN, Fialova D, Szczerbinska K, Kooijmans ECm et al..  2023.  Optimising the care for older persons with complex chronic conditions in home care and nursing homes: design and protocol of I-CARE4OLD, an observational study using real-world data. BMJ Open. 13(6):e072399.

Wouters H, Hilmer SN, Twisk J, Teichert M, Van Der Meer HG, van Hout HPJ, Taxis K.  2020.  Drug burden index and cognitive and physical function in aged care residents: a longitudinal study. Journal of the American Medical Directors Association. 21(8):1086-1092.e1.