Yan L. P., Correia C., Pereira D. R., Sousa R. A., Oliveira J. M., Oliveira A. L., and Reis R. L.,  "Injectable Silk Fibroin Hydrogels with Ionic Strength and pH Response for Tissue Engineering and Regenerative Medicine Applications",  Journal of tissue engineering and regenerative medicine, vol. 7, issue S1, pp. 14-14, doi:10.1002/term.1822, 2013.