Hanene Ali-Boucetta, Antonio Nunes, Raquel Sainz, M. Antonia Herrero, Bowen Tian, Maurizio Prato, Kostas Kostarelos and Alberto Bianco.”Asbestos-like pathogenicity of long carbon nanotubes can be alleviated by chemical functionalization”. Angew.Chem.Int.Ed. 2013 Feb;52(8):2274-8.