Gunston, K D The bubble test as a measure of amniotic fluid surfactant and as a predictor of hyaline membrane disease. [electronic resource] - South African medical journal = Suid-Afrikaanse tydskrif vir geneeskunde Sep 1978 - 495-7 p. digital Publication Type: Comparative Study; Journal Article ISSN: 0256-9574 Subjects--Topical Terms: Amniotic Fluid--analysisChemical PhenomenaChemistry, PhysicalFemaleHumansHyaline Membrane Disease--diagnosisInfant, NewbornPhosphatidylcholines--analysisPhospholipids--analysisPregnancyPulmonary Surfactants--analysisSphingomyelins--analysisSurface Tension