المؤلفون: Geller, Jack, Adler, Emil H., Albert, Jerry, Brown, Daniel W., Licudan, Alice, Manaig, Eduardo

المصدر: Geriatrics; Apr1977, Vol. 32 Issue 4, p63-71, 6p, 3 Charts, 2 Graphs

المؤلفون: Adler, Emil H., Abrams, Sol B.

المصدر: American Journal of Obstetrics and Gynecology; January 1943, Vol. 45 Issue: 1 p123-126, 4p