T. Kaewamatawong, W. Banlunara, P. Maneewattanapinyo, C. Thammacharoen, and S. Ekgasit, “Acute Pulmonary Toxicity Caused by Single Intratracheal Instillation of Various Doses of Colloidal Silver Nanoparticles in Mice: Pathological Changes, Particle Bioaccumulation and Metallothionien Protein Expression”, TJVM, vol. 43, no. 3, pp. 383–390, Oct. 2013.