Potential cases were identified through a review of the electronic medical records of all patients seeking infertility treatment. Patients were included in the study if they were diagnosed with female infertility due to:

Pituitary-hypothalamic dysfunction
Annovulation/tubal factor/endometriosis
Altered menstrual cycle length
Abnormalities of uterus, cervix, vagina
Recurrent miscarriage
Unexplained infertility