REFERENCE:

1. NHS Direct Health Encyclopedia: Infertility; Introduction. Available from: http://www.nhsdirect.wales.nhs.uk/encyclopaedia/i/article/infertility/ Accessed 17 March 2014.
2. IOM: Institute of medicine
3. 2013 Australian Dietary Guidelines Summary found at: https://www.nhmrc.gov.au/_?les_nhmrc/publications/attachments/n55a_australian_dietary_guidelines_summary_131014.pdf Accessed 20 March 2014.
4. http://www.foodstandards.gov.au/consumer/generalissues/pregnancy/Pages/default.aspx Accessed 20 March 2014.