%0 Journal Article %B Cochrane Database of Systematic Reviews %D 2012 %G eng %M 23190572 %P 59 %T Study protocol: systematic review of the burden of heart failure in low- and middle-income countries %V 1 %2 3534577 %7 2012/11/30 %@ 2046-4053 (Electronic)2046-4053 (Linking)