Prescription DTD
From: http://www.mcis.duke.edu/standards/HL7/sigs/sgml/rx.htm, November 1996

Prescription DTD

<!DOCTYPE PRESCRIPTION [
<!--<Title>Untitled - 1--
 >
<!ELEMENT PRESCRIPTION  - - (FORM? & DISPENSE? & DOSAGE? & INSTRUCTIONS? &
               SUBSTITUTE? & NUMBER? & REFILL? & (#PCDATA))?
--<Title>PRESCRIPTION-- >

<!ELEMENT INSTRUCTIONS  - - (#PCDATA) --<Title>INSTRUCTIONS--
               --This element contains instructions about the medication--
               ----
                >

<!ELEMENT DOSAGE  - - (#PCDATA) --<Title>DOSAGE--
               --The element contains the dosage amount.--
                >

<!ELEMENT DISPENSE  - - (#PCDATA) --<Title>DISPENSE--
               --This element exlpains how the medication is to be
dispensed.--
                >

<!ELEMENT FORM  - - (#PCDATA) --<Title>FORM--
               --This is to indicate the form of the medication: tablet,
capsule, etc.--
                >

<!ELEMENT SUBSTITUTE  - - (#PCDATA) --<Title>SUBSTITUTE--
               --This element contains possibel substitute medications, if
any.--
                >

<!ELEMENT REFILL  - - (#PCDATA) --<Title>REFILL--
               --Refill instructions for the medication--
                >

<!ELEMENT NUMBER  - - (#PCDATA) --<Title>NUMBER-- --DEA number-- >

<!ATTLIST NUMBER
               --<Title>Untitled - 1 - Attribute List-000--

               NOTYPE (DEA , LICENSE)   #IMPLIED
               --<Title>NOTYPE--
                >

]>

Document instance based on prescription DTD

<PRESCRIPTION>Amoxicillin<FORM>250 mg.
capsule</FORM><DISPENSE>30</DISPENSE><DOSAGE>1 cap(s)
po</DOSAGE><INSTRUCTIONS>3 times daily until
gone</INSTRUCTIONS><REFILL>0</REFILL><SUBSTITUTE>may
substitute</SUBSTITUTE><NUMBER NOTYPE="DEA">AB1234567</NUMBER></PRESCRIPTION>

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