您要查找的是不是：
- 因子XIfactor XI, plasma thromboplastin antecedent
- 凝血因子XIplasma thromboplastin antecedent
- 血浆促凝血酶原激酶前体，凝血因子XIplasma thromboplastin antecedent; PTA
- 因子factor
- 细胞因子cell factor
- 转录因子transcription factor
- 因子分析factorial analysis
- 生长因子nutrilit
- 肿瘤坏死因子tumor necrosis factor
- 趋化因子chemotactic factor (CF)
- 凝血因子plasma thromboplastin component (PTC)
- 比例因子proportional divisor
- 表皮生长因子EGF
- 剩余公因子方差residual communality
- 索因子cord factor
- 校正因子correction factor
- Ｃ因子C factor
- Ｆ因子F factor
- Ｈ因子H factor
- Ｐ因子P element
