Letter: Further evaulation of the shake test.
D000653:Amniotic Fluid / Q000032:analysis*; D006801:Humans; D006819:Hyaline Membrane Disease / Q000175:diagnosis; D007231:Infant, Newborn; D010743:Phospholipids / Q000032:analysis*; D011663:Pulmonary Surfactants / Q000032:analysis*
D010743:Phospholipids; D011663:Pulmonary Surfactants