1. Factors affecting sexual functioning in 60–79 year-old married males;Martin;Arch Sex Behav,1981
2. Sexual behavior in the human male;Kinsey,1953
3. Sexual behavior in the human female;Kinsey,1953
4. The Starr-Weiner report on sex and sexuality in the mature years;Starr,1981
5. Steroid hormones and aging, free testosterone, testosterone and androstenedione in normal females aged 20–87 years;Purifoy;Human Biol,1980