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				<full_title>Journal of Health Informatics and Digital Systems</full_title>
				<abbrev_title>J. Health Inform. Digit. Syst.</abbrev_title>
				<issn>3149-8973</issn>
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					<year>2026</year>
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					<volume>6</volume>
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				<issue>2</issue>
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					<title>Self-Supervised Representation Learning for Healthcare Operations Events Using Timestamped Orders, Patient Transfers, Staff Actions, Queue Transitions, System Interaction Logs, and Unit-Level Workflow Signals</title>
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          					<person_name sequence="first" contributor_role="author">
            <given_name>Yuki</given_name>
            <surname>Yamamoto</surname>
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            <given_name>Kenji</given_name>
            <surname>Ito</surname>
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					<year>2026</year>
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