[Achievements in overcoming infant mortality in Poland].
D003710:Demography; D019049:Developed Countries; D005060:Europe; D005061:Europe, Eastern; D007226:Infant Mortality; D009026:Mortality; D011044:Poland; D011153:Population; D011154:Population Characteristics; D011157:Population Dynamics
Child Mortality; Demographic Factors; Developed Countries; Eastern Europe; Europe; Infant Mortality; Mortality; Poland; Population; Population Characteristics; Population Dynamics
Osiagniecia Polski w zwalczaniu umieralnosci niemowlat