VITROS Sodium Slides, Catalog # 837 9034
Potential for positively biased results
US Nationwide, Bermuda, Austria, Brazil, Canada, Colombia, China, India, Japan, Mexico, Singapore, UK, France, Germany, Italy, Spain, Portugal, Poland, Russia, Denmark, Norway, Sweden, Belgium and the Netherlands
https://www.accessdata.fda.gov/scripts/ires/index.cfm?Product=Z-3280-2018