Baller M., Boorsma M., Frijters D.H, van Marwijk H.W, Nijpels G., van Hout H.P.  2010.  Depression in Dutch homes for the elderly: under-diagnosis in demented residents? Int J Geriatr Psychiatry. 25(7):712-8.

Boorsma M., Joling K.J, Frijters D.H, Ribbe M.E, Nijpels G., van Hout H.P.  2012.  The prevalence, incidence and risk factors for delirium in Dutch nursing homes and residential care homes. Int J Geriatr Psychiatry. 27(7):709-15.

Frijters D.H, Achterberg W.P.  2007.  [The ZZP Questionnaire. Reliability of a new resource utilization measure]. Tijdschr Gerontol Geriatr. 38(4):165-72.

Frijters D.H, Mor V., DuPaquier J.N, Berg K., Carpenter G.I, Ribbe M.W.  1997.  Transitions across various continuing care settings. Age & Ageing. 26(SUPPL. 2):73-76.

Gerritsen D.L, Achterberg W.P, Steverink N., Pot A.M, Frijters D.H, Ribbe M.W.  2008.  The MDS Challenging Behavior Profile for long-term care. Aging & Mental Health. 12(1):116-23.

Gerritsen D.L, Steverink N., Frijters D.H, Hirdes J.P, Ooms M.E, Ribbe M.W.  2008.  A revised Index for Social Engagement for long-term care. Journal of Gerontological Nursing. 34(4):40-8.

Hirdes J.P, Frijters D.H, Teare G.F.  2003.  The MDS-CHESS scale: a new measure to predict mortality in institutionalized older people. Journal of the American Geriatrics Society. 51(1):96-100.

Vaal J., Gussekloo J., de Klerk M.M, Frijters D.H, Evenhuis H.M, van Beek A.P, van Nispen R.M, Smits C., Deeg D.J.  2007.  [Combined vision and hearing impairment: in an estimated 30,000-35,000 people aged 55 years or over in The Netherlands].. Nederlands Tijdschrift voor Geneeskunde. 151(26):1459-63.

Volicer L., Frijters D.H, van der Steen J.T.  2013.  Apathy and weight loss in nursing home residents: longitudinal study. J Am Med Dir Assoc. 14(6):417-20.