“…Histograms of proliferation and differentiation changes in hindlimb buds at day 13.5 of development (means + SEM) (n ¼ 70 at each group), (a) number of mesenchymal cells, (b) number of degenerated cells (*p 5 0.05, **p 5 0.01, ***p 5 0.001). Bodamyali et al 1998, Cameron & Hunter 1985, Delgado et al 1982, Eyres et al 1996, Gupta et al 1991, Hand & Cadossi 1993, Levin 2003, Mclean et al 2001, Inoue et al 2002, Richards et al 1988, Xu et al 2000, Tenforde & Kaune 1987. The differences in results are due to a variety of factors including frequency, intensity, wave shape, effective time of EMF exposure and the kind of animals used.…”