Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Relationship between expected and least-squares mean observed dipeptidyl peptidase-4 (DPP-4) concentrations following serial dilution of samples A (
), B (
) and C (
). The dilution factor was used to determine the expected results of the undiluted sample at the dilutions made and compared with the observed or assayed result. Lighter squares represent samples in which observed values differ from expected values by ≥10%.
