New Releases from NCBI BookshelfEvidence review for clinical and cost effectiveness of rapid antigen tests (RAT) and polymerase chain reaction (PCR) tests for guiding treatment in people with suspected sepsis: Suspected sepsis: recognition, assessment and early management: Evidence review E.​Evidence review for clinical and cost effectiveness of rapid antigen tests (RAT) and polymerase chain reaction (PCR) tests for guiding treatment in people with suspected sepsis: Suspected sepsis: recognition, assessment and early management: Evidence review E.