Mishra, D.; Mishra, H.; Mishra, P. K.; Nahar, M.; Dubey, V.; Jain, N. K. Evaluation of Solid Lipid Nanoparticles As Carriers for Delivery of Hepatitis B Surface Antigen for Vaccination Using Subcutaneous Route. J Pharm Pharm Sci 2010, 13, 495-509.