1Fox, S. Health information online. Washington, DC : Pew internet &- American life project[EB/OL]. E2014 - 12 - 151 . http://www, pewinternet, org/pdfs/PIP : x005F; Healthtopics x005F May05.pdf.
3Huang M, Hansen D, Xie B.Older adults' online health information seeking behavior [C]. Proceedings of the 2012 iConference.ACM, 2012 : 338 - 345.
4Campbell R J, Nolfi D A.Teaching elderly adults to use the Internet to access health care information: before- after study[EB/OL].[2014 - 12 - 23].http://www. ne bi.nlm.nih.gov/pmc/artieles/PMC1550650/.
5Palsdottir A. Opportunistic discovery of information by elderly Icelanders and their relatives[J].Information Re search,2011,16(3) :38 -61.
6Yharra M, Suman M. Reasons, assessments and actions taken:sex and age differences in uses of internet health information [J]. Health Education Research, 2008, 23 (3) :512 - 521.
7Flynn K E,Smith M A,Freese J.When do older adults turn to the internet for health information? Findings from the wisconsinlongitudinal study [J ]. Journal of General Internal Medicine, 2006,21 (12) : 1295 - 1301.
8Eriksson- Backa K. Access to health information: per- ceptions of barriers among elderly in a language minori ty[J].Information Research, 2008,13(4) : 368 - 374.
9Manafo E,Wong S.Exploring older adults' health infor mation seeking behaviors[J].Journal of nutrition educa- tion and behavior,2012,44(1) ..85 - 89.
10Powell J, Inglis N, Ronnie J, et al.The characteristics and motivations of online health information seekers: cross-sectional survey and qualitative interview study [EB/OL]. [2014 - 12 - 19 ]. http://www, nebi. nlm. nih. gov/pmc/articles/PMC3221342/.