AU  - Unützer J, Patrick DL, Simon G, et al
TI  - Depressive symptoms and the cost of health services in hmo patients aged 65 years and older: A 4-year prospective study
PT  - JOUR
DP  - 1997
TA  - JAMA
pages = {1618-1623},
VI  - 277
IP  - 20
AID  - 10.1001/jama.1997.03540440052032 [doi]
4100  - http://dx.doi.org/10.1001/jama.1997.03540440052032
SO  - JAMA May 28, 1997 277(20):1618