Raptors avoid the confusion effect by targeting fixed points in dense aerial prey aggregations by Brighton, C, Harding, C, Larkman, L, McGowan, K, Zusi, L, Kloepper, L, Taylor, GK

Human immunodeficiency virus type 1-hepatitis C virus coinfection: intraindividual comparison of cellular immune responses against two persistent viruses. by Lauer, G, Nguyen, T, Day, C, Robbins, G, Flynn, T, McGowan, K, Rosenberg, E, Lucas, M, Klenerman, P, Chung, RT, Walker, B