1. Foraker, A. G., and Reagan, J. W. (1956). Cancer (Philad.), 9, 470.
2. Amer;Galvin, G.A.; Jones, H.W.; Te Linde, R.W.,1955
3. Diagnostic Cytology and its Histopathologic Bases;Koss, L.G.; Durfee, G.R.,1961
4. McKay, D. G., Terjanian, B., Poschyachinda, D., Younge, P. A., and Hertig, A. T. (1959). Obstet. and Gynec., 13, 2.
5. Personal communication;Norden, J.G.,1961