REFERENCES
- Hertig, A. T. and Sheldon, W. H.: Am. J. Obst. & Gynec. 53: 1, 1947.
- Hunt, W., Dockerty, M. B. and Randall, L. M.: Obst. & Gynec. 1: 593, 1953.
- Hertz, R. and others: J.A.M.A. 168: 845, 1958.
ADDITIONAL REFERENCES
- AcostASison, H.: Am. J. Obst. & Gynec. 58: 125, 1949.
- AcostASison, H.: Am. J. Obst. & Gynec. 69: 442, 1955.
- AcostASison, H.: Am. J. Obst. & Gynec. 71: 1279, 1956.
- Hobbs, J. E. and Price, C. N.: Am. J. Obst. & Gynec. 39: 39, 1940.
- Huber, H. and HÖrmann, G.: Geburtsh. u. Frauenh. 14: 799, 1954.
- Li, M. C., Hertz, R. and Bergenstal, D. M.: New England J. Med. 259: 66, 1958.
- Li, M. C., Hertz, R. and Spencer, D. B.: Proc. Soc. Exper. Biol. & Med. 93: 361, 1956.
- Paalman, R. J. and Vander Veer, C. G.: Am. J. Obst. & Gynec. 65: 491, 1953.
- Sexton, L. I., Hertig, A. T., Reid, D. E., Kellog, F. S. and Patterson, W. S.: Am. J. Obst. & Gynec. 59: 13, 1950.
- Smalbraak, J.: Trophoblastic Growths. Amsterdam, Netherlands, Elsevier Publishing Co., 1957.
- Villee, C.: The Placenta and Fetal Membranes. Baltimore, The Williams & Wilkins Company, 1960.