@article {litwin2021network,
	title = {Network-exposure severity and self-protective behaviors: The case of COVID-19},
	journal = {Innovation in Aging},
	volume = {5},
	number = {2},
	year = {2021},
	pages = {igab015},
	publisher = {Oxford University Press US},
	author = {Litwin, Howard and Levinsky, Michal}
}
