[Rates of perinatal mortality and condition of newborn children by age of mother, her obstetric history, and illness during pregnancy].
Troszynski
M
M
Roszkowski
I
I
D003710:Demography; D019049:Developed Countries; D005060:Europe; D005061:Europe, Eastern; D005313:Fetal Death; D007226:Infant Mortality; D009026:Mortality; D011044:Poland; D011153:Population; D011157:Population Dynamics
Demographic Factors; Developed Countries; Eastern Europe; Europe; Fetal Death; Infant Mortality; Mortality; Poland; Population; Population Dynamics