Primary infertility: characteristics of women in North America according to pathological findings. by Beral, V, Rolfs, R, Joesoef, MR, Aral, S, Cramer, D

Are caffeinated beverages risk factors for delayed conception? by Joesoef, MR, Beral, V, Rolfs, RT, Aral, S, Cramer, D

Fertility and use of cigarettes, alcohol, marijuana, and cocaine. by Joesoef, MR, Beral, V, Aral, S, Rolfs, RT, Cramer, D