Hemagglutination inhibiting antibodies and protection against seasonal and pandemic influenza infection. - Fox, A; Mai, L; Thanh, LT; Wolbers, M; Le Khanh Hang, N; Thai, P; Thi Thu Yen, N; Minh Hoa, L; Bryant, J; Duong, T; Thoang, D; Barr, I; et al. (Journal of infection, 2015)