- * Describes the source of the data using a database cross-reference (or a 'ref' attribute when the source cannot be found in a public data source, such as PubMed, and is cited only within the UniProtKB entry).
+ * Describes the source of the data using a database cross-reference (or a 'ref'
+ * attribute when the source cannot be found in a public data source, such as
+ * PubMed, and is cited only within the UniProtKB entry).