An acarologic survey and Amblyomma americanum distribution map with implications for tularemia risk in Missouri - Brown, H.E.; Yates, K.F.; Dietrich, G.; MacMillan, K.; Graham, C.B.; Reese, S.M.; Helterbrand, Wm. S.; Nicholson, W.L.; Blount, K.; Mead, P.S.; Patrick, S.L.; Eisen, R.J. (American Journal of Tropical Medicine and Hygiene, 2011)