“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 15, 2024. https://preservation.bmrat.org/index.php/BMRAT/article/view/130.