1. 1 Data from the Information System and Documentation Unit , Malaysian Ministry of Health, Kuala Lumpur, 1998.
2. 2 Data from the Information System and Documentation Unit , Malaysian Ministry of Health, Kuala Lumpur, 1996.
3. 3 Data from the Information System and Documentation Unit , Malaysian Ministry of Health, Kuala Lumpur, 1997.
4. 4 American Heart Association and American Academy of Paediatrics.Textbook of Neonatal Resuscitation.Elk Grove Village, IL, 1994.