1. Professional association. https://en.wikipedia.org/wiki/Professional_association
2. Obstetrics and gynaecology. https://en.wikipedia.org/wiki/Obstetrics_and_gynaecology
3. British Medical Association (BMA) https://www.bma.org.uk/advice/career/studying-medicine/insiders-guide-to-medical-specialties/nhs-career-choices/obstetrics-and-gynaecology
4. Shaw D. Advocacy: the role of health professional associations. Int J Gynaecol Obstet. 2014;127(Suppl 1):S43–8.
5. Society of Gynaecology and Obstetrics of Nigeria (SOGON). http://www.sogon.org/conference/