Borzone G, Liberona L, Olmos P, Sáez C, Meneses M, Reyes T, Moreno R, Lisboa C. Rat and hamster species differences in susceptibility to elastase-induced pulmonary emphysema relate to differences in elastase inhibitory capacity. American Journal of Physiology-Regulatory, Integrative and Comparative Physiology. 2007 Sep;293(3):R1342–9. doi: 10.1152/ajpregu.00343.2007.