“Determining Normal Range for Free Light Chains in Serum Among Twins”
The objective of this study is to recruit healthy adult identical and fraternal twins for the collection of one teaspoon of blood to be sent to the Clinical Lab at San Francisco General Hospital. The serum will be tested to determine the reference range for free light chains.
Device - Free light chains
Blood samples will be collected and analyzed
Normal Range Study for Free Light Chains in Blood Among Identical or Fraternal Twins