Abstract Background Health data from different specialties or domains generallly have diverse formats and meanings. which can cause semantic communication barriers when these data are exchanged among heterogeneous systems. As such. this study is intended to develop a national health concept data model (HCDM) and develop a corresponding system to facilitate healthcare data standardizat... https://www.roneverhart.com/Fender-Tone-Master-Twin-Reverb-Guitar-Amp-Blonde/