However, Thomsen and Andreasen demonstrated in 2019 that the strontium isotopic data obtained from the area surrounding the grave and used by Frei et al for comparison against the remains had been contaminated by additional strontium contained in the agricultural lime used in modern farming in the Egtved area. When Thomsen and Andreasen analyzed samples locally from places uncontaminated by modern farming, they found that the range of strontium isotopic values in the surrounding natural environment matched those in the girl. Thus, it is most plausible that she originated from and spent her entire life in the Egtved area, and did not come far abroad, as proposed by Frei et al. Thomsen and Andreasen's results show that the girl did live about half the year in one area – likely the river valley in Egtved – and the other half of the year in another place – likely the local plateau, perhaps in the practice of transhumance farming and seasonal pastoral movement within a small area.