Hayasaka S.: Psychology of Infertile Females, Anxiety and Coping Behavior of Females Undergoing In-vitro Fertilization/Embryo Transfer, Japanese Journal of Maternal Health, 46(2) : 292-299, 2005.
Verhaak CM., Smeenk J.M., van Minnen A. et al.: A longitudinal, prospective study on emotional adjustment before, during and after consecutive fertility treatment cycles, Human Reproduction, 20(8) : 2253-2260, 2005.