preferred_name: factor VIIIa + factor IXa -> factor VIIIa:factor IXa (Rattus norvegicus)
preferred_name_lc: factor viiia + factor ixa -> factor viiia:factor ixa (rattus norvegicus)
label: factor VIIIa + factor IXa -> factor VIIIa:factor IXa (Rattus norvegicus)
label_lc: factor viiia + factor ixa -> factor viiia:factor ixa (rattus norvegicus)