by Hendrix, L, Ludwig, D, Franklin, B, Maitoza, C, Doxford, N, Ford, S.E, Compton, J, Buss, B.F, Sackett, D, Krinn, K, Campbell, S, Roth, R, Florom, E, Clements, T, Newell, D, Ailes, E.C, Otto, C, Roberts, J.M, Hlavsa, M.C, Dunbar, E.L
Published in MMWR. Morbidity and mortality weekly report (21.05.2010)