[1] Trinity Coll Dublin, Sch Pharm & Pharmaceut Sci, Dublin, Ireland
[2] Trinity Coll Dublin, Trinity Ctr Ageing & Intellectual Disabil, Dublin, Ireland
[3] Trinity Coll Dublin, Sch Nursing & Midwifery, Dublin, Ireland
[4] Temple Univ, Sch Social Work, Coll Publ Hlth, Philadelphia, PA USA
[5] Maynooth Univ, Assisting Living & Learning Inst, Maynooth, Kildare, Ireland
[6] Maynooth Univ, Dept Psychol, Maynooth, Kildare, Ireland
[7] Hlth Serv Execut Natl Clin Programme People Disab, Dublin, Ireland
[8] Coll Psychiatrists Ireland, Fac Learning Disabil Psychiat, Dublin, Ireland
[9] Univ Plymouth, Peninsula Med Sch, Plymouth, Devon, England