@article {147424,
	title = {Immune response against Hitchner B1 vaccine in chickens infected with mycoplasma.},
	journal = {Beni-Suef ,Vet. Med. Res. J., },
	volume = {3},
	year = {1993},
	pages = {108-123.},
	author = {M.M. Amer and D.G.khilfa and A.S.A.Metwalli and M.F.El-Kady}
}
