Sprague–Dawley rats were randomly distributed into two groups: one placebo-exposed group undergoing saline (NaCl 0.9%) inhalation (n = 30) and one Cd-exposed group undergoing cadmium (CdCl2 0.1%) inhalation (n = 30)
Sprague–Dawley rats were randomly distributed into two groups:one placebo-exposed group undergoing saline (NaCl 0.9%) inhalation (n = 30) and one Cd-exposed group undergoing cadmium(CdCl2 0.1%) inhalation (n = 30)