Rodríguez, S.D., Palmer, G.H., McElwain, T.F., McGuire, T.C., Ruef, B.J., Chitko-McKown, M.G., Brown, W.C. (1996)CD4+ T-helper lymphocyte responses against Babesia bigemina rhoptry-associated protein I, Infect Immun. , 64(6), 2079-87.