1. WHO Preterm Birth: World Health Organisation http://www.who.int/mediacentre/factsheets/fs363/en/
2. International Fetal and Newborn Growth Standards for the 21st Century - Basic Neonatal Care Manual http://www.medscinet.net/Interbio/Uploads/ProtocolDocs/Draft%20Neonatal%20Manual%20.pdf
3. WHO WHO Safe Childbirth Checklist Implementation Guide
4. WHO Essential medicines and health products - The Pursuit of Responsible Use of Medicines: Sharing and Learning from Country Experiences: World Health Organisation http://www.who.int/medicines/areas/rational_use/en/