Fig. 4From: RETRACTED ARTICLE: A Comparative Study of the Toxicity of Polyethylene Glycol–Coated Cobalt Ferrite Nanospheres and NanoparticlesBiodistribution of PEG-CoFe2O4 in blood, heart, liver, spleen, lungs, and kidney after different intervals (1, 6, 16, 24 h) exposed to nanospheres (a) and nanoparticles (b)Back to article page