Enzymes provide demographers with food for thought.
Life expectancy has increased by 20 years since the middle of the last century, but children under five have fared better than adult males.
['Jit|Mark|M|', 'Gerland|Patrick|P|']
D005260:Female D015658:HIV Infections D006801:Humans D007182:Income D008017:Life Expectancy D008297:Male D015233:Models, Statistical D012907:Smoking
Human adult survival child survival enzyme kinetics income smoking