S. Carratero, J. Garces, F. Rodenas and V. Sanjose, “The Informal Caregiver’s Burden of Dependent People: Theory and Empirical Review,” Archives of Gerontology and Geriatrics, Vol. 49, No. 1, 2009, pp. 74-79. http://dx.doi.org/10.1016/j.archger.2008.05.004
 E. W. Gonzalez, M. Polansky, C. F. Lippa, D. Walker and D. Feng, “Family Caregivers at Risk: Who Are They?” Issues in Mental Health Nursing, Vol. 32, No. 8, 2011, pp. 528-536. http://dx.doi.org/10.3109/01612840.2011.573123
 A. L. Neri, M. S. Yassuda, A. C. G. Fortes-Burgos, E. P. Mantovani, F. S. Arbex, S. V. DeSouza-Torres, M. R. Perracini and M. E. Guariento, “Relationships between Gender, Age, Family Conditions, Physical and Mental Health, and Social Isolation of Elderly Caregivers,” International Psychogeriatrics, Vol. 24, No. 3, 2012, pp. 472-483. http://dx.doi.org/10.1017/S1041610211001700
 S. Savage and S. Bailey, “The Impact of Caring on Caregivers’ Mental Health: A Review of the Literature,” Australian Health Review, Vol. 27, No. 1, 2004, pp. 103-109. http://dx.doi.org/10.1071/AH042710111
 W. E. Haley, J. Y. Allen, J. S. Grant, O. J. Clay, M. Perkins and D. L. Roth, “Problems and Benefits Reported by Stroke Family Caregivers: Results from a Prospective Epidemiological Study,” Stroke, Vol. 40, No. 6, 2009, pp. 2129-2133. http://dx.doi.org/10.1161/STROKEAHA.108.545269
 M. J. Poulin, S. L. Brown, P. A. Ubel, D. M. Smith, A. Jankovic and K. M. Langa, “Does a Helping Hand Mean a Heavy Heart? Helping Behaviour and Well-Being among Spouse Caregivers,” Psychology and Aging, Vol. 25, No. 1, 2010, pp. 108-117. http://dx.doi.org/10.1037/a0018064
 M. R. DiMatteo, K. B. Haskard-Zolnierek and L. R. Martin, “Improving Patient Adherence: A Three Factor Model to Guide Practice,” Health Psychology Review, Vol. 6, No. 1, 2012, pp. 74-91. http://dx.doi.org/10.1080/17437199.2010.537592
 S. A. AlGhurair C. A. Hughes, S. H. Simpson and L. M. Guirguis, “A Systematic Review of Patient Self-Reported Barriers to Adherence to Antihypertensive Medications Using the World Health Organization Multidimensional Adherence Model,” The Journal of Clinical Hypertension, Vol. 14, No. 12, 2012, pp. 877-886. http://dx.doi.org/10.1111/j.1751-7176.2012.00699.x
 S. Kripliano, X. Yao and R. B. Haynes, “Interventions to Enhance Medication Adherence in Chronic Medical Conditions: A Systematic Review,” Archives of Internal Medicine, Vol. 167, No. 6, 2007, pp. 540-550. http://dx.doi.org/10.1001/archinte.167.6.540
 V. Shahly, S. Chatterji, M. J. Gruber, A. Al-Hamzawi, J. Alonso, L. H. Andrade, M. C. Angermeyer, R. Bruffaerts, B. Bunting, J. M. Caldas-de Almeida, G. de Girolamo, P. de Jongo, S. Florescu, O. Gureje, J. M. Haro, H. R. Hinkov, C. Hu, E. G. Karam, J. P. Lepine, D. Levinson, M. E. Medina-Mora, J. Posada-Villa, N. A. Sampson, J. K. Trivedi, M. C. Viana and R. C. Kessler, “Cross-National Differences in the Prevalence and Correlates of Burden among Older Family Caregivers in the WHO World Mental Health (WMH) Surveys,” Psychological Medicine, Vol. 43, No. 4, 2013, pp. 865-879. http://dx.doi.org/10.1017/S0033291712001468
 J. Robison, R. Fortinsky, A. Kleppinger, N. Shugrue and M. Porter, “A Broader View of Family Caregiving: Effects of Caregiving and Caregiver Conditions on Depressive Symptoms, Health, Work, and Social Isolation,” Journal of Gerontology: Social Sciences, Vol. 64, No. 6, 2009, pp. 788-798. http://dx.doi.org/10.1093/geronb/gbp015
 W. H. Shrank, J. N. Liberman, M. A. Fischer, E. Kilabuk, C. Girdish, S. Cutrona, T. Breenan and N. K. Choudry, “Are Caregivers Adherent to Their Own Medications?” Journal of the American Pharmacists Association, Vol. 51, No. 4, 2011, pp. e53-e59.
 M. Pinquart and S. Sorensen, “Associations of Caregiver Stressors and Uplifts with Subjective Well-Being and Depressive Mood: A Meta-Analytic Comparison,” Aging and Mental Health, Vol. 8, No. 5, 2004, pp. 428-449.
 M. Pinquart and S. Sorensen, “Correlates of Physical Health of Informal Caregivers: A Meta-Analysis,” Journal of Gerontology: Social Sciences, Vol. 62, No. 2, 2007, pp. 126-137. http://dx.doi.org/10.1093/geronb/62.2.P126
 M. Y. Savundranayagam, R. J. V. Montgomery and K. Kosloski, “A Dimensional Analysis of Caregiver Burden among Spouses and Adult Children,” The Gerontologist, Vol. 51, No. 3, 2010, pp. 321-331. http://dx.doi.org/10.1093/geront/gnq102
 G. R. Smith, G. M. Williamson, L. S. Miller and R. Schulz, “Depression and Quality of Informal Care: A Longitudinal Investigation of Caregiving Stressors,” Psychology and Aging, Vol. 26, No. 3, 2011, pp. 584-591. http://dx.doi.org/10.1037/a0022263
 M. Pinquart and S. Sorensen, “Spouses, Adult Children and Children-in-Law as Caregivers of Older Adults: A Meta Analytic Comparison,” Psychology and Aging, Vol. 26, No. 1, 2011, pp. 1-14. http://dx.doi.org/10.1037/a0021863
 L. H. Hastrup, B. Van Den Berg and D. Gyrd-Hansen, “Do Informal Caregivers in Mental Illness Feel More Burdenened? A Comparative Study of Mental versus Somatic Illnesses,” Scandanavian Journal of Public Health, Vol. 39, No. 6, 2011, pp. 598-607. http://dx.doi.org/10.1177/1403494811414247
 B. K. Ahmedani, S. P. Kubiak, R. C. Kessler, R. DeGraaf, J. Alonso, R. Bruffaerts, Z. Zarkov, M. C. Viana, Y. Q. Huang, C. Hu, J. A. Posada-Villa, J. P. Lepine, M. C. Angermeyer, G. DeGirolamo, A. N. Karam, M. E. Medina-Mora, O. Gureje, F. Ferry, R. Sagar and J. C. Anthony, “Embarrassment When Illness Strikes a Close Relative: A World Mental Health Survey Consortium Multi-Site Study,” Psychological Medicine, Vol. 43, No. 10, 2013, pp. 2191-2202.
 L. Magliano, A. Fiorillo, C. DeRosa, C. Malangoneand M. Maj, “The National Mental Health Project Working Group: Family Burden in Long Term Diseases: A Comparative Study in Schizophrenia vs Physical Disorders,” Social Science and Medicine, Vol. 61, No. 2, 2005, pp. 313-322. http://dx.doi.org/10.1016/j.socscimed.2004.11.064
 R. C. Kessler, P. Berglund, W. T. Chiu, O. Demler, S. Heeringa, E. Hiripi, R. Jin, B. E. Pennell, E. E.Walters, A. Zaslavsky and H. Zheng, “The US National Comorbidity Survey Replication (NCS-R): Design and Field Procedures,” The International Journal of Methods in Psychiatric Research, Vol. 13, No. 2, 2004, pp. 69-92. http://dx.doi.org/10.1002/mpr.167
 A. Bobinac, N. J. van Exel, F. F. Rutten and W. B. Brouwer, “Caring for and Caring about: Disentangling the Caregiver Effect and the Family Effect,” Journal of Health Economics, Vol. 29, No. 4, 2010, pp. 549-556. http://dx.doi.org/10.1016/j.jhealeco.2010.05.003
 M. C. Garber, D. P. Nau, S. R. Erickson, J. E. Aikens and J. B. Lawrence, “The Concordance of Self-Report with Other Measures of Medication Adherence: A Summary of the Literature,” Medical Care, Vol. 42, No. 7, 2004, pp. 649-652. http://dx.doi.org/10.1097/01.mlr.0000129496.05898.02
 A. T. Woodward, K. M. Bullard, R. J. Taylor, L. M. Chatters, R. E. Baser and B. E. Perron, “Use of Complementary and Alternative Medicines for Mental and Substance Use Disorders: A Comparison of African Americans, black Carribeans, and Non-Hispanic Whites,” Psychiatric Services, Vol. 60, No. 10, 2009, pp. 1342-1349. http://dx.doi.org/10.1176/appi.ps.60.10.1342