Positive and Negative Experiences of Social Support and Risk of Dementia in Later Life: An Investigation Using the English Longitudinal Study of Ageing. Khondoker M, Rafnsson SBjorn, Morris S, Orrell M, Steptoe A J Alzheimers Dis. 2017; 58(1):99-108. PMID: 28387667. Abstract Comment Bookmark Recommend Follow Comment | Bookmark | Recommend | Follow