Hocaoglu AB, Karaman O, Erge DO, Erbil G, Yilmaz O, Kivcak B, Bagriyanik HA, Uzuner N. Effect of Hedera Helix on Lung Histopathology in Chronic Asthma. Iran J Allergy Asthma Immunol. 1;11(4):316-323.