The FEMU (Forschungszentrum für Elektro- Magnetische Umweltverträglichkeit), a German Research Center for Bioelectromagnetic Interaction, is keeping up-to-date a database of scientific papers related to potential health effects of electromagnetic fields.
We warmly advise you to visit their portal : EMF-portal.
Search page at : http://www.emf-portal.de/suche.php?l=e&sform=8