[Foam test (shake test)].
D000653:Amniotic Fluid / Q000032:analysis*; D005260:Female; D006801:Humans; D008722:Methods; D010713:Phosphatidylcholines / Q000032:analysis*; D011247:Pregnancy; D011663:Pulmonary Surfactants / Q000032:analysis*; D013109:Sphingomyelins / Q000032:analysis*
D010713:Phosphatidylcholines; D011663:Pulmonary Surfactants; D013109:Sphingomyelins