REFERENCES
- Friedman, M. H.: Mechanism of ovulation in the rabbit: Part 2. Ovulation produced by the injection of urine from pregnant women. Am. J. Physiol. 90:617–622 (November) 1929.
- Norms, J. C.: Improved Friedman pregnancy test: A new method. South. M. J. 49:519–520 (May) 1956.