Possible effects of electric blankets and heated waterbeds on fetal development
Nancy Wertheimer PhD, Ed Leeper – “Seasonal patterns were seen in fetal growth and in abortion rate for families using electrically heated beds. These patterns could be attributed to the seasonal use of heated beds. …seen only in users, and not in nonusers…”
View in Wiley Online Library, BioElectroMagnetics 1986: http://onlinelibrary.wiley.com/doi/10.1002/bem.2250070103/abstract