Operator
Welcome to the Quest Diagnostics Fourth Quarter and Full Year 2020 Conference Call. [Operator Instructions] The entire content of the call, including the presentation and question-and-answer session that will follow, are the copyrighted property of Quest Diagnostics with all rights reserved. Any redistribution, retransmission or rebroadcast of this call in any form without the written consent of Quest Diagnostics is strictly prohibited.
Now I d like to introduce Shawn Bevec, Vice President of Investor Relations for Quest Diagnostics. Go ahead, please.
Shawn Bevec
Vice President, Investor Relations
Thank you, and good morning. I m on the line with Steve Rusckowski, our Chairman, Chief Executive Officer and President; and Mark Guinan, our Chief Financial Officer. During this call, we may make forward-looking statements and will discuss non-GAAP measures. We provide a reconciliation of non-GAAP measures to comparable GAAP measures in the tables to our earnings press rel