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Haag, K.L.; Gottstein, B.; Ayala, F.J. (2009). The EG95 antigen of Echinococcus spp. contains positively selected amino acids, which may influence host specificity and vaccine efficacy. PLoS ONE, 4(4), e5362. Lawrence, Kans.: Public Library of Science 10.1371/journal.pone.0005362
