1. Uvnas Moberg, K et al. Personality traits in women 4 days postpartum and their correlation with plasma levels of oxytocin and prolactin Journal of Obstetrics and Gynaecology 1990 : 11 261-273)
2. The Oxytocin Factor, Tapping the Hormone of Calm , Love and Healing . Kerstin Uvnas Moberg
Chapter 8 : Nursing – Oxytocin Starring Role p. 75-81