Isakhelo sesixhobo senziwe ngemodeli yesinyithi. Imodeli intle, kwaye ineIzinto eziluncedo kumthamo omncinci, ubunzima obuphantsi, amandla amakhulu, ingxolo ephantsi, ukusebenza okuphezulu kunyenjalo. Ingasetyenziswa kwizibhedlele nakwiilebhu ze-biochemical zohlalutyo olusemgangathweniI-Serum, irea kunye neplasma.