权威例句
Phosphatidyl Glycerol, Amniotic FluidThe effect of primary cytomegalovirus infection on fetal lung maturity indices.Correlation between amniotic fluid lecithin-sphingomyelin (L/S) ratio and optical density measured after centrifugation at varying f...Correlation between amniotic fluid lecithinPlasma renin activity: a method for rapid screening by radioimmunoassay and a comparison of two commercially available kitsA study of Δ5-3β-hydroxysteroid dehydrogenase in human foetal adrenal glandsAbetalipoproteinemiaPolysaccharide/functional compound complexUnexpectedly low lecithin/sphingomyelin ratio associated with fetal diaphragmatic herniaDetermination of fetal maturity and of development of the fetal lungs by means of combined methods
