@article {12574,
	title = {Our National Parks as Ragweed Hayfever Refuges},
	journal = {Journal of the American Medical Association},
	volume = {138},
	year = {1948},
	month = {September},
	pages = {126},
	keywords = {Mammals -- Infections and diseases, National Park Service},
	author = {Durham, Oren C.}
}
