Pulmonary surfactant and stability of aeration in young human fetuses.
D001724:Birth Weight; D005260:Female; D005313:Fetal Death; D005333:Fetus / Q000502:physiology*; D006801:Humans; D007231:Infant, Newborn; D007234:Infant, Premature; D008168:Lung / Q000502:physiology*; D011247:Pregnancy; D012119:Respiration; D012127:Respiratory Distress Syndrome, Newborn / Q000209:etiology* / Q000503:physiopathology; D013500:Surface Tension