preferred_name: factor VIIIa + factor IXa -> factor VIIIa:factor IXa (Bos taurus)
preferred_name_lc: factor viiia + factor ixa -> factor viiia:factor ixa (bos taurus)
label: factor VIIIa + factor IXa -> factor VIIIa:factor IXa (Bos taurus)
label_lc: factor viiia + factor ixa -> factor viiia:factor ixa (bos taurus)