

@article {5990,
	title = {{A novel virus in swine is closely related to the human hepatitis}},
	journal = {Proceedings of the National Academy of Sciences of the United States of America},
	volume = {94},
	number = {18},
	year = {1997},
	pages = {9860{\textendash}9865},
	author = {X J Meng and R H Purcell and P G Halbur and J R Lehman and D M Webb and T S Tsareva and J S Haynes and B J Thacker and S U Emerson}
}
