@article {caffoSleep,
	title = {A novel approach to prediction of mild sleep disorders in a population-based sample: the Sleep Heart Health Study},
	journal = {Sleep, PMCID: PMC2982734},
	volume = {33},
	number = {12},
	year = {2011},
	pages = {1641{\textendash}1648},
	author = {Caffo, B and Diener-West, M and Punjabi, N and Samet, J}
}
@article {crainiceanu2009nonparametric,
	title = {Nonparametric signal extraction and measurement error in the analysis of electroencephalographic activity during sleep},
	journal = {Journal of the American Statistical Association, PMCID: PMC2802498},
	volume = {104},
	number = {486},
	year = {2009},
	pages = {541{\textendash}555},
	publisher = {ASA},
	author = {Crainiceanu, C and Caffo, B and Di, C and Punjabi, N}
}
