document: Standard protocol for exchange of health-checkup data based on SGML : the Health-checkup Data Markup Language -LRB- HDML -RRB- The objectives are to develop a health/medical data interchange model for efficient electronic exchange of data among health-checkup facilities . A Health-checkup Data Markup Language -LRB- HDML -RRB- was developed on the basis of the Standard Generalized Markup Language -LRB- SGML -RRB- , and a feasibility study carried out , involving data exchange between two health checkup facilities . The structure of HDML is described . The transfer of numerical lab data , summary findings and health status assessment was successful . HDML is an improvement to laboratory data exchange . Further work has to address the exchange of qualitative and textual data
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