Editing Mortality rate (section)

===Census data and vital statistics===
Ideally, all mortality estimation would be done using vital statistics and census data. Census data will give detailed information about the population at risk of death. The vital statistics provide information about live births and deaths in the population.<ref name=":0">{{Cite journal|last=Timæus|first=Ian M.|date=1991|title=Measurement of Adult Mortality in Less Developed Countries: A Comparative Review|jstor=3644262|journal=Population Index|volume=57|issue=4|pages=552–568|doi=10.2307/3644262|pmid=12284917}}</ref> Often, either census data and vital statistics data is not available. This is common in developing countries, countries that are in conflict, areas where natural disasters have caused mass displacement, and other areas where there is a humanitarian crisis <ref name=":0" />