Tramadol is a widely used weak opioid; however, the evidence for its safety profile in respiratory system needs additional information. We aimed to examine whether tramadol use is associated with… Click to show full abstract
Tramadol is a widely used weak opioid; however, the evidence for its safety profile in respiratory system needs additional information. We aimed to examine whether tramadol use is associated with an increased risk of pneumonia in the general population.
               
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