Norman, S. A., Raverty, S., Zabek, E., Etheridge, S., Ford, J. K., Hoang, L. M., & Morshed, M. (2011). Maternal–Fetal Transmission of Cryptococcus gattii in Harbor Porpoise. Centers for Disease Control and Prevention.

Norman, Stephanie A., Stephen Raverty, Erin Zabek, Sandra Etheridge, John K.B Ford, Linda M.N Hoang, و Muhammad Morshed. Maternal–Fetal Transmission of Cryptococcus Gattii in Harbor Porpoise. Centers for Disease Control and Prevention, 2011.

Norman, Stephanie A., et al. Maternal–Fetal Transmission of Cryptococcus Gattii in Harbor Porpoise. Centers for Disease Control and Prevention, 2011.