shafer's sign tobacco dust "Tobacco dust," or Shafer’s sign, refers to the presence of fine brown pigmented cells (from the retinal pigment epithelium) floating in the anterior vitreous. , ⚠️ It’s an important clinical clue Tobacco dust = Shafer's sign
Description
If a good or service is inferior, then an increase in income reduces demand for the good
22,23 Special groups Several population groups have either higher rates of smoking or greater risk of adverse effects
Though it might sound odd at first, fog machines use Propylene Glycol to help create the fog, and so the studies on how the vapour made by fog machines effects people could be useful
[DOI] [PMC free article] [PubMed] [Google Scholar] Aswathi, P
