[1] Ranci C, Brandsen T, Sabatinelli S. New social risks and the role of local welfare: An introduction[M]. Ranci C, Brandsen T, Sabatinelli S. Social Vulnerability in European Cities. London, UK: Palgrave Macmillan, 3-30(2014).

[2] Lord S, Despres C, Ramadier T. When mobility makes sense: A qualitative and longitudinal study of the daily mobility of the elderly[J]. Journal of Environmental Psychology, 31, 52-61(2011).

[3] Hughes H L. The care of the aged healthy, the aged infirm, and the aged who are chronically sick, the care of the aged who are chronically sick[J]. Journal Royal Sanitary Institute, 71, 36-39(1951).

[4] Knudson A B. Physical medicine and rehabilitation: Effectiveness and progress in restoration of the chronically ill and aging[J]. Annals of Internal Medicine, 48, 139-145(1958).

[5] Frank H, Krusen M D. Physical medicine and rehabilitation for the chronically ill[J]. Journal of the American Geriatrics Society, 2, 75-85(1954).

[6] Miller M B. The chronically ill aged, family conflict, and family medicine[J]. Journal of the American Geriatrics Society, 17, 950-961(1969).

[7] Aldrich C K, Mendkoff E. Relocation of the aged and disabled: A mortality study[J]. Journal of the American Geriatrics Society, 11, 185-194(1963).

[8] Harper S, Laws G. Rethinking the geography of ageing[J]. Progress in Human Geography, 19, 199-221(1995).

[9] Kearns R, Collins D. Health geography[M]. Brown T, Mclafferty S, Moon G. A companion to health and medical geography. Hoboken, USA: Wiley-Blackwell, 15-32(2009).

[10] Gant R L, Smith J A. Journey patterns of the elderly and disabled in the Cotswolds: A spatial analysis[J]. Social Science & Medicine, 27, 173-180(1988).

[11] Kearns R A. Place and health: Towards a reformed medical geography[J]. Professional Geographer, 45, 139-147(1993).

[12] Milligan C, Power A. 2009. The changing geography of care[M]. Brown T, Mclafferty S, Moon G. A Companion to Health and Medical Geography. Hoboken, USA: Wiley-Blackwell, 567-586(1993).

[13] Martin G P, Nancarrow S A, Parker H et al. Place, policy and practitioners: On rehabilitation, independence and the therapeutic landscape in the changing geography of care provision to older people in the UK[J]. Social Science & Medicine, 61, 1893-1904(2005).

[14] Park D C, Radford J P, Vickers M H. Disability studies in human geography[J]. Progress in Human Geography, 22, 208-233(1998).

[15] Cutchin M P. Spaces for inquiry into the role of place for older people's care[J]. Journal of Clinical Nursing, 14, 121-129(2005).

[16] Andrews G J. Towards a more place-sensitive nursing research: An invitation to medical and health geography[J]. Nursing Inquiry, 9, 221-238(2002).

[17] Wiles J. Conceptualizing place in the care of older people: The contributions of geographical gerontology[J]. Journal of Clinical Nursing, 14, 100-108(2005).

[18] Parr H. Medical geography: Care and caring[J]. Progress in Human Geography, 27, 212-221(2003).

[19] Savundranayagam M Y. Geographical gerontology: Perspectives, concepts, approaches[J]. Gerontologist, 58, 795-796(2018).

[20] Milligan C, Wiles J. Landscapes of care[J]. Progress in Human Geography, 34, 736-754(2010).

[21] Andrews G J, Milligan C, Phillips D R et al. Geographical gerontology: Mapping a disciplinary intersection[J]. Geography Compass, 3, 1641-1659(2009).

[23] Andrews G J. Geographical thinking in nursing inquiry, part two: Performance, possibility, and non-representational theory[J]. Nursing Philosophy, 18, 1-20(2016).

[24] Worrall P, Chaussalet T J. A structured review of long-term care demand modelling[J]. Health Care Management Science, 18, 173-194(2015).

[25] Charlesworth S. Long-term care reforms in OECD countries[J]. Ageing & Society, 37, 1527-1529(2017).

[26] Lagergren M, Kurube N. Provision of long-term care in relation to needs in urban and rural municipalities in Japan and Sweden[J]. Geriatrics & Gerontology International, 14, 315-327(2014).

[27] Gruenberg E M. The failures of success[J]. The Milbank Quarterly, 55, 3-24(1977).

[28] Fries J F. Aging, natural death, and the compression of morbidity[J]. New England Journal of Medicine, 303, 130-135(1980).

[29] Manton K G. Changing concepts of morbidity and mortality in the elderly population[J]. The Milbank Quarterly, 60, 183-244(1982).

[30] World Health Organization. Lessons for long-term care policy[report]. Geneva, Switzerland: WHO(2002).

[31] Wittenberg R, Pickard L, Comasherrera A et al. Demand for long-term care for older people in England to 2031[J]. Health Statistics Quarterly, 12, 5-17(2001).

[32] Higgs G. A literature review of the use of GIS-based measures of access to health care services[J]. Health Services & Outcomes Research Methodology, 5, 119-139(2004).

[33] Shah T I, Milosavljevic S, Bath B. Determining geographic accessibility of family physician and nurse practitioner services in relation to the distribution of seniors within two Canadian Prairie Provinces[J]. Social Science & Medicine, 194, 96-104(2017).

[34] Stubbs J G, Barnett J R. The geographically uneven development of privatisation: Towards a theoretical approach[J]. Environment & Planning A, 24, 1117-1135(1992).

[35] Williams A M. Restructuring home care in the 1990s: Geographical differentiation in Ontario, Canada[J]. Health & Place, 12, 222-238(2006).

[36] Joseph A E, Chalmers A I L. Restructuring long-term care and the geography of ageing: A view from rural New Zealand[J]. Social Science & Medicine, 42, 887-896(1996).

[37] Bishop C E. Where are the missing elders: The decline in nursing home use, 1985 and 1995[J]. Health Affairs, 18, 146-155(1999).

[38] Miller J C. Geography of long-term care[J]. Gerontologist, 55, 129-129(2015).

[39] Comas-Herrera A, Wittenberg R, Costa-Font J et al. Future long-term care expenditure in Germany, Spain, Italy and the United Kingdom[J]. Ageing & Society, 26, 285-302(2006).

[40] Mangano A. An analysis of the regional differences in health care utilization in Italy[J]. Health & Place, 16, 301-308(2010).

[41] Lagergren M, Sjolund, B M, Fagerstrom C et al. Horizontal and vertical target efficiency: A comparison between users and non-users of public long-term care in Sweden[J]. Ageing and Society, 34, 700-719(2014).

[42] Andersen R, Newman J F. Societal and individual determinants of medical care utilization in the United States[J]. The Milbank Quarterly, 83, 1-28(2005).

[43] Cho S E. Determinants of health care service utilization in people with developmental disabilities: An application of the Gelberg-Andersen behavioral model for vulnerable populations[J]. Journal of Applied Research in Intellectual Disabilities, 27, 354-354(2014).

[44] Heider D, Matschinger H, Müller H et al. Health care costs in the elderly in Germany: An analysis applying Andersen's behavioral model of health care utilization[J]. BMC Health Services Research, 14, 71(2014).

[45] Niefeld M R, Kasper J D. Access to ambulatory medical and long-term care services among elderly medicare and medicaid beneficiaries: Organizational, financial, and geographic barriers[J]. Medical Care Research and Review, 62, 300-319(2005).

[46] Nemet G F, Bailey A J. Distance and health care utilization among the rural elderly[J]. Social Science & Medicine, 50, 1197-1208(2000).

[47] Ryvicker M, Gallo W T, Fahs M C. Environmental factors associated with primary care access among urban older adults[J]. Social Science & Medicine, 75, 914-921(2012).

[48] Fortney J, Chumbler N, Cody M et al. 2002. Geographic access and service use in a community-based sample of cognitively impaired elders[J]. Journal of Applied Gerontology, 21, 352-367(2012).

[49] Mobley L R, Root E, Anselin L et al. Spatial analysis of elderly access to primary care services[J]. International Journal of Health Geographics, 5, 19(2006).

[51] Borup J H. The effects of varying degrees of interinstitutional environmental change on long-term care patients[J]. Gerontologist, 22, 409-417(1982).

[52] Kearns R, Moon G. From medical to health geography: Novelty, place and theory after a decade of change[J]. Progress in Human Geography, 26, 605-625(2002).

[53] Wiles J. Informal caregivers' experiences of formal support in a changing context[J]. Health & Social Care in the Community, 11, 189-207(2003).

[54] Joseph A E, Kearns R A. Deinstitutionalization meets restructuring: The closure of a psychiatric hospital in New Zealand[J]. Health & Place, 2, 179-189(1996).

[55] Lawson V. Geographies of care and responsibility[J]. Annals of the Association of American Geographers, 97, 1-11(2007).

[56] Dyck I, Kontos P, Angus J et al. The home as a site for long-term care: Meanings and management of bodies and spaces[J]. Health & Place, 11, 173-185(2005).

[58] Wiles J. Reflections on being a recipient of care: Vexing the concept of vulnerability[J]. Social & Cultural Geography, 12, 573-588(2011).

[59] Atkinson S, Lawson V, Wiles J. Care of the body: Spaces of practice[J]. Social & Cultural Geography, 12, 563-572(2011).

[60] Warner M E, Homsy G C, Morken L J. Planning for aging in place: Stimulating a market and government response[J]. Journal of Planning Education and Research, 37, 29-42(2016).

[61] Pile S. Emotions and affect in recent human geography[J]. Transactions of the Institute of British Geographers, 35, 5-20(2010).

[62] Pavolini E, Ranci C. Restructuring the welfare state: Reforms in long-term care in western European countries[J]. Journal of European Social Policy, 18, 246-259(2008).

[63] Castles F G. The future of the welfare state: Crisis myths and crisis realities[J]. International Journal of Health Services, 32, 255-277(2002).

[64] Pauly M V. The rational nonpurchase of long-term-care insurance[J]. Journal of Political Economy, 98, 153-168(1990).

[65] Patterson L. Making our health and care systems fit for an ageing population[J]. Age and Ageing, 43, 731(2014).

[66] Weissert W G. Seven reasons why it is so difficult to make community-based long-term care cost-effective[J]. Health Services Research, 20, 423-433(1985).

[67] MacAdam M. PRISMA: Program of research to integrate the services for the maintenance of autonomy: A system-level integration model in Quebec[J]. International Journal of Integrated Care, 15, 1-14(2015).

[68] Maeng D D, Snyder S R, Baumgart C et al. Medicaid managed care in an integrated health care delivery system: Lessons from Geisinger's early experience[J]. Population Health Management, 19, 257-263(2016).

[69] Milligan C, Roberts C, Mort M. Telecare and older people: Who cares where[J]. Social Science & Medicine, 72, 347-354(2011).

[70] Gleeson B. Towards enabling geographies: 'Disabled' bodies and minds in society and space[J]. Progress in Human Geography, 36, 284-285(2012).

[73] World Health Organization. World report on ageing and health[report]. Geneva, Switzerland: WHO(2015).

[75] Andrews G J, Cutchin M, McCracken K et al. Geographical gerontology: The constitution of a discipline[J]. Social Science & Medicine, 65, 151-168(2007).