AU  - Pitt B
TI  - COmparative effectiveness of β-blockers in elderly patients with heart failure—invited commentary
PT  - JOUR
DP  - 2008
TA  - Archives of Internal Medicine
pages = {2431-2432},
VI  - 168
IP  - 22
AID  - 10.1001/archinte.168.22.2431 [doi]
4100  - http://dx.doi.org/10.1001/archinte.168.22.2431
SO  - Archives of Internal Medicine December 8, 2008 168(22):2431