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%principal-investigator-elements; Principal Investigator Elements

The elements that can be included along with data characters inside the content model of a <principal-investigator> element.
Declaration
<!ENTITY % principal-investigator-elements
                        " | %contrib-id.class; | 
                         %investigator-name.class;"                  >
Expanded Declaration

| contrib-id | name | name-alternatives | string-name