Chromosomes were harvested and chromosomal abnormalities analyzed using solid Leishman staining on metaphase spreads and dysfunctional telomeres were analyzed using PNA-FISH method, also on metaphase spreads.
Litningar voru heimtir og litningagallar greindir á metafösum eftir Leishman litun. Gallar í litningaendum voru greindir með PNA-FISH aðferð, einnig á metafösum.