Showing results (31-40 of 49) with videos related to
Sort By:
Pageof 5
Psychosomatic Medicine|March 1, 1997
Testosterone predicts initiation of coitus in adolescent femalesC T Halpern, J R Udry, C SuchindranDemography|February 1, 1980
Parity-specific and two-sex utility models of reproductive intentionsE S Fried, S L Hofferth, J R UdryFertility and Sterility|April 1, 1977
A study of the relationship between coitus and the luteinizing hormone surgeN M Morris, J R Udry, L E UnderwoodPopulation Studies|November 17, 2011
Population growth rates in perfect contraceptive populationsJ R Udry, K E Bauman, C L ChaseDemography|November 1, 1976
The effect of subsidized family planning services on reproductive behavior in the United States, 1969-1974J R Udry, K E Bauman, N M MorrisDevelopmental Psychology|June 25, 1999
Effects of body fat on weight concerns, dating, and sexual activity: a longitudinal analysis of black and white adolescent girlsC T Halpern, J R Udry, B Campbell, et al.The Journal of Adolescent Health : Official Publication of the Society for Adolescent Medicine|March 8, 2000
Smart teens don't have sex (or kiss much either)C T Halpern, K Joyner, J R Udry, et al.Social Biology|January 1, 1993
Relationships between aggression and pubertal increases in testosterone: a panel analysis of adolescent malesC T Halpern, J R Udry, B Campbell, et al.Psychosomatic Medicine|September 1, 1993
Testosterone and pubertal development as predictors of sexual activity: a panel analysis of adolescent malesC T Halpern, J R Udry, B Campbell, et al.Fertility and Sterility|August 1, 1987
Peak coital rate coincides with onset of luteinizing hormone surgeC Hedricks, L J Piccinino, J R Udry, et al.Pageof 5