Elimination of retroviral infectivity by N-ethylmaleimide with preservation of functional envelope glycoproteins. by Morcock, DR, Thomas, J, Gagliardi, T, Gorelick, R, Roser, J, Chertova, E, Bess, J, Ott, D, Sattentau, Q, Frank, I, Pope, M, Lifson, J, Henderson, L, Crise, B