Several factors contribute to favourable ferning patterns. The type of ferning pattern achieved relies on the balance between salt and macromolecule concentration (ie proteins, mucous). In a solution ...

The tear ferning test is an easily performed test used to observe the tear fern pattern. A sample of tears dried on a glass microscope slide produces a crystallization pattern. Various ferning ...

Spontaneous preterm birth (sPTB) occurs before 37 gestational weeks, with preterm premature rupture of the membranes (PPROM) and spontaneous preterm labor (sPTL) as the predominant adverse outcomes.