1. Patterns of sexual behaviour;Ford,1965
2. Sexual behaviour in the human female;Kinsey,1953
3. Likelihood ratio tests;Howell,1997
4. A note on the sensory characters of the nipple and areola;Jones;Med J Aust,1931
5. XX1V. The innervation of the human quiescent nipple with notes on pigmentation, erection and hyperneury;Cathcart;Trans R Soc Edinb,1947