@article {762551,
	title = {Dissecting direct and indirect genetic effects on chronic obstructive pulmonary disease (COPD) susceptibility},
	journal = {Human Genetics},
	volume = {132},
	number = {4},
	year = {2013},
	pages = {431-441},
	author = {M. Siedlinski and D. Tingley and P. Lipman and M. Cho and A. Litonjua and D. Sparrow and P. Bakke}
}
