BioMed Research International has retracted the article titled “The Copper Radioisotopes: A Systematic Review with Special Interest to 64Cu” [1]. The article was found to contain a substantial amount of material from the following published articles:(i)Szymański et al. [2], which is cited as reference .(ii)Wadas et al. [3], which is cited as reference .(iii)Carolyn and Ferdani [4], which is cited as reference .(iv)Smith et al. [5], which is cited as reference .