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Puskas, J. E., & Chen, Y. (2004). Biomedical Application of Commercial Polymers and Novel Polyisobutylene-Based Thermoplastic Elastomers for Soft Tissue Replacement?. Biomacromolecules, 5(4), 1141–1154. doi:10.1021/bm034513k 
10.1021/bm034513k