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Musallam, Basim. Sex and Society in Islam: Birth Control before the Nineteenth Century. (New York: Cambridge University Press, 1983), 11.
Medieval Birth Control
Musallam, Basim. Sex and Society in Islam: Birth Control before the Nineteenth Century. (New York: Cambridge University Press, 1983), 61.
Medieval Birth Control
Tully, L, and L. Arseneault (2004). Does maternal Warmth Moderate the Effects of Birth Weight on Twins' ADHD Symptoms and Low IQ? Journal of Consulting and Clinical Psychiatry.
Effect of Low Birth Weight on Intelligence
Schilling, Renee M. "The Effects of Birth Order on Interpersonal Relationships." < http://faculty.mckendree.edu/scholars/2001/schilling.htm>.
Birth-Order Effects Theory
Wetzstein, C. (2000, March 9). Teens inconsistent in birth-control use, two studies suggest. The Washington Times, p. 3.
Birth Control in Teens
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