Thank you, Dr. Kellon, for highlighting this study.  I find it interesting in light of multiple paired results on my horses in which the EDTA samples (run at Cornell) were consistently higher than the serum samples (run at Idexx).  I'm not sure if the same types of assays (RIA vs CLIA) are used in both labs.  Do you have any idea why Cornell continues to indicate that either sample type can be used for the insulin assay?  Has anyone run paired samples (EDTA and serum) at Cornell?  It was also surprising how stable the serum samples were, in spite of the delay in separating them.
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Aunna
October 2018
Oakland County, Michigan, USA
Cadet Case History:  https://ecir.groups.io/g/CaseHistory/files/Aunna%20and%20Cadet
Ruger Case History:  https://ecir.groups.io/g/CaseHistory/files/Aunna%20and%20Ruger

Cadet Photo Album:  https://ecir.groups.io/g/CaseHistory/album?id=84102