1. Scalzi CC, Burke L, Greenland S: Evaluation of an inpatient educational program for coronary patients and families. Heart Lung 1980, 9: 846–853.
2. Parker JC, Wright GE: Depression in arthritis and musculoskeletal disorders. In Depression and Physical Illness. Edited by: Robertson MM, Katona CLE. Chichester , John Wiley; 1997:377–390.
3. Stevens D, Merikangas KR, Merikangas JR: Comorbidity of depression and other medical conditions. In Handbook of Depression. Edited by: Beckham E, Leber W. New York , Guildford Press; 1995:147–199.
4. Beck AT, Steer RA, Brown GK: Manual for the Beck Depression Inventory-II. San Antonio, Texas , Psychological Corp; 1996.
5. Guyatt GH, Feeny DH, Patrick DL: Measuring health-related quality of life. Ann Intern Med 1993, 118: 622–629.