REFERENCES
- Current Population Reports. Series P.25, No. 329. Washington, D.C., United States Department of Commerce, Bureau of the Census, March 10, 1966.
- 1960 Census of Population. Washington, D.C, United States Department of Commerce, Bureau of the Census, January 1966, PC(2) 4E, Marital Status, Table 2.
- Parks, J.: Womanhood after fifty. Med Arts Sci 13:68–74, 2nd Quart, 1959.
- Davis, M. E.: Estrogen and the aging process. In Greenhill, J. P. (Editor): The Year Book of Obstetrics and Gynecology (1964–1965). Chicago, Year Book Medical Publishers, Inc., 1964, pp 339–358.
- Kagan, A., Dawber, T. R., Kannel, W. B. and Revotskie, N.: The Framingham study: A prospective study of coronary heart disease. Fed Proc 21(4) Pt 2:52–57, 1962.
- Hueper, W. C.: Environmental Cancer. In Homburger, F. (Editor): The Physiopathology of Cancer. Ed 2. New York, Hoeber Medical Division, Harper & Row, Publishers, Incorporated, 1959, Chap 24, P 919.
- James, G.: Adapting urban mental health services to our aging population. Amer J Orthopsychiat 34:840–851, 1964.
- Marital Statistics, 1952. U.S. Vital Statist 40: 151–179 (January 10) 1955.
- Dannreuther, W. T.: Vaginal dyspareunia. Amer J Obstet Gynec 74:747–752 (October) 1957.