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Adapting opioid therapy: real-world analysis of switching from methadone to slow-release morphine and back amid COVID-19 supply chain disruptions

Crossref DOI link: https://doi.org/10.1186/s13722-025-00622-6

Published Online: 2026-01-22

Update policy: https://doi.org/10.1007/springer_crossmark_policy

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