Haque, T., H. Chen, W. Ouyang, T. Metz, B. Lawuyi, and S. Prakash. “Effect of Integrating Polyethylene Glycol to Alginate-Poly-L-Lysine and Alginate Chitosan Microcapsules for Oral Delivery of Live Cells and Cell Transplant for Therapy”. CMBES Proceedings, vol. 28, no. 1, Dec. 2005, https://proceedings.cmbes.ca/index.php/proceedings/article/view/455.