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Pelvic inflammatory disease risk following negative results from chlamydia nucleic acid amplification tests (NAATs) versus non-NAATs in Denmark: A retrospective cohort

Fig 2

Crude risk of PID by 12 months by test result and test type.

NAAT, Nucleic Acid Amplification Test; PID, pelvic inflammatory disease.

Fig 2

doi: https://doi.org/10.1371/journal.pmed.1002483.g002