Billy, John O.G

Assessment of factors affecting the validity of self-reported health-risk behavior among adolescents: evidence from the scientific literature

Brener, N. D., Billy, J. O. G., & Grady, W. R. (2003) · Journal of Adolescent Health

Adolescent Health and BehaviorsAdolescent Sexual and Reproductive Health

Cited by 1,331

Serum androgenic hormones motivate sexual behavior in adolescent boys

Richard Udry, J., Billy, J. O. G., Morris, N. M., Groff, T. R., & Raj, M. H. (1985) · Fertility and Sterility

Hypothalamic control of reproductive hormonesHormonal and reproductive studies

Cited by 201