Le, Phuong, Tuan Duong, Ngoc Vu, and Phuc Pham. “Umbilical Cord Derived Stem Cell (ModulatistTM) Transplantation for Severe Chronic Obstructive Pulmonary Disease: A Report of Two Cases”. Biomedical Research and Therapy 3, no. 10 (October 29, 2016): 902-909. Accessed November 27, 2024. http://home.biomedpress.org/index.php/BMRAT/article/view/130.