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Format: 'pid' ['?'] ',issuer' ['?'] [',' [ '[' ] <demograhic-match>matches> [ ']' ]
<demograhic-match> matches> ::= '<demograhic-match> [' [<ignore>','] <demograhic-fields> ']' | |' ...]
<demograhic-match> ::= [<ignore>','] <demograhic-fields>
<ignore> ::= 'ignore("' <regular-expression> '")'
<demograhic-fields> ::= <demograhic-field> ['?'] [',' ...]
<demograhic-field> ::= 'familyname''(1)' | 'givenname''(1)' | 'middlename''(1)' | 'nameprefix''(1)' | 'namesuffix''(1)' | 'birthdate' | 'sex'
Multiple alternative <demograhic-matches> can be specified using '|' as delimiter.
Substrings specified by 'ignore("' <regular-expression> '")' will be ignored for matching patient name components.
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