Effect of exposure to extremely low frequency magnetic fields on melatonin levels in calves is seasonally dependent
Scientific Reports (2015) - Comment
pubmed: 26381579  doi: 10.1038/srep14206  issn: 2045-2322 

Tereza Kolbabová, E. Pascal Malkemper, Luděk Bartoš, Jacques Vanderstraeten, Marek Turčáni, Hynek Burda