IL-4 Protein, Mouse, Recombinant (His)白细胞介素, 白介素, TCGF-2, T cell growth factor-2, MCGF-2, Mast-cell growth factor-2, interleukin 4, Il-4, IL4, BSF-1, BSF1, BSF 1, BCGF-1, BCDF, B cell stimulatory factor-1, B cell growth factor-1, B cell differentiation factor