Case-control study on occupational exposure to extremely low-frequency electromagnetic fields and glioma riskCarlberg, Michael; Koppel, Tarmo; Ahonen, Mikko; Hardell, LennartAmerican journal of industrial medicine2017 / p. 494-503 : ill https://doi.org/10.1002/ajim.22707 Increasing incidence of thyroid cancer in the Nordic countries with main focus on Swedish dataCarlberg, Michael; Hedendahl, Lena; Ahonen, Mikko; Koppel, Tarmo; Hardell, LennartBMC cancer2016 / p. 1-15 : ill http://dx.doi.org/10.1186/s12885-016-2429-4 Is the increasing incidence of thyroid cancer in the nordic countries caused by use of mobile phones?Carlberg, Michael; Koppel, Tarmo; Hedendahl, Lena K.; Hardell, LennartInternational journal of environmental research and public health2020 / 9 p. : ill https://doi.org/10.3390/ijerph17239129 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS