[On the problem of prevention of prolonged pregnancy in the field].
D003581:Cytodiagnosis; D005260:Female; D006801:Humans; D007226:Infant Mortality; D007231:Infant, Newborn; D008722:Methods; D011247:Pregnancy; D011248:Pregnancy Complications / Q000517:prevention & control*; D011273:Pregnancy, Prolonged
K otázce prevence prenásení tĕhotenství v terénu.