7. 2. Contrast between the structures of MML Version 2.x and those of MML Version 3.0

The difference between the structures of MML Version 2.x and MML Version 3.0 is shown below.

(As the MmlHeader and docInfo were in the default namespace in MML Version 2.3, they were written without prefixes. In MML Version 3.0, the prefix “mml:” is used explicitly.)
In the illustration above, the contents of the <MmlHeader> and <MmlModuleItem> used in MML V2.x are embedded in the appropriate spaces of the HL7 CDA documents.

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