Purification and biologic characterization of plasma-derived megakaryocyte growth and development factor - Hunt, P; Li, Y S; Nichol, J L; Hokom, M M; Jakob, M B; Susan, E; Swift, F; Skrine, J D; Alex, C H; Hsieng, L; Clogston, C; Merewether, L A; Johnson, M J; Parker, V; Knudten, A; Farese, A; Hsu, R Y; Garcia, A; Stead, R; Bosselman, R A; Bartley, T D (Blood, 1995)