1. Towards a combined child health service,1991
2. Homosexuality declines in US;McBride, G.;BMJ,1993
3. The sexual behavior of men in the United States. Fam Plann Perspect;Billy, J.O.G.; Tanfer, K.; Grady, W.R.; Klepinger, D.H.,1993
4. Sexual behavior in the human male;Kinsey, A.C.; Pomeroy, W.B.; Martin, C.E.,1948
5. sex and fraud;Reisman, J.A.; Kinsey, Eichel E.W.,1990