LONDON, England, July 4 -- BMJ Open, a medical journal that says it features research questions in clinical medicine, public health and epidemiology, posted research articles, including the following topics, in its June 2023 edition:

Protocol:

* Cerebrospinal fluid biomarkers of neuroinflammation and postoperative neurocognitive disorders in patients undergoing orthopaedic surgery: protocol for a systematic review and meta-analysis

* Use of a targeted, com . . .

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