Selenium levels of EstoniansRauhamaa, Päivi; Kantola, Marjatta; Viitak, Anu; Kaasik, Aidula-Taie; Mussalo-Rauhamaa, HelenaEuropean journal of clinical nutrition2008 / 9, p. 1075-1078 http://dx.doi.org/10.1038/sj.ejcn.1602818