The results can be compared with the CoGeNT signal and other experiment limits to evaluate interpretations as WIMPs, neutralino, and other models. However the CoGeNT-signal has since been shown to have resulted from unaccounted background from surface effects; after accounting for this background, the CoGeNT-signal has been shown to be compatible with null results (that is, no signal at all). The COSINE-100 collaboration has been working in Korea towards confirming or refuting the DAMA-signal. They are using similar experimental setup to DAMA (NaI(Tl)-crystals). They published their results in December 2018 in the journal Nature; their result rules out spin-independent WIMP–nucleon interactions as the cause of the annual modulation observed by the DAMA collaboration. A possible explanation of the reported modulation was pointed out as originating from the data analysis procedure. A yearly subtraction of the constant component can give rise to a sawtooth residual in the presence of a slower time dependence. The obvious criticism of the seasonal variation of events recorded in the DAMA/LIBRA experiment is that it is in fact due to some purely seasonal effect unconnected with WIMPs. Although the deep underground location minimizes temperature swings and other direct sunlight effects, there are annual humidity fluctuations and other non-obvious effects. At moment, all these criticisms are taken in account by DAMA collaboration in analysis of the experimental data and they have been excluded, as discussed in published results. A repetition of this experiment in the Southern Hemisphere with the variation in phase with DAMA/LIBRA would discount this objection; if on the other hand variation was detected in the Southern Hemisphere that was 6 months out of phase with DAMA/LIBRA, then the seasonal variation objection would be upheld. Improved versions of DAMA/LIBRA, named SABRE (Sodium-iodide with Active Background REjection) are under construction in two places. One is at LNGS, and the other is in Australia at the Stawell Underground Physics Laboratory, a laboratory being constructed 1025 m below the surface in a gold mine in Stawell, Victoria. First results are expected in 2017. The construction of the Stawell Underground Physics Laboratory (SUPL) was halted by the shutdown of its host mine in 2016. Construction restarted around one year later and SUPL is, as of October 2019, well-funded with help from the Australian government.