title:Exogenous DNA uptake of boar spermatozoa by a magnetic nanoparticle vector system' n4 o, k/ I3 c9 _! w& B
http://www.ncbi.nlm.nih.gov/pubmed/19788517 ; i2 U7 f4 `/ I; ~3 Lhttp://onlinelibrary.wiley.com/doi/10.1111/j.1439-0531.2009.01516.x/abstract