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This RELREC demonstrates a linking between a specific clinical observation (CLSEQ) and its corresponding clinical sign follow-up at necropsy (MASEQ).

This example demonstrates a linking between findings across the Clinical Observations (CL), Palpable Masses (PM), MA, Microscopic Findings (MI), and Tumor Findings (TF) domains using RELREC. The mass was first identified as an abrasion over several weeks (grouped by CLGRPID = 5), graduating to a mass with several associated clinical findings (identified by a CLSPID of "MASS 2"). These clinical findings correspond to a set of findings in the PM domain, a clinical signs follow-up and gross pathological examination in the MA domain, a single microscopic finding from the MI domain, and a single tumor finding in the TF domain. Each of the findings in the PM, MA, MI, and TF are related by way of the --SPID field, with a value of "MASS 2".

Because all of these records are related, they are given the same RELID (in this case a value of 80).