Primary Source #370:

O'Byrne P, MacPherson P. Syphilis. BMJ. 2019 Jun 28;365:l4159. doi: 10.1136/bmj.l4159. Erratum in: BMJ. 2019 Jul 19;366:l4746. PMID: 31253629; PMCID: PMC6598465.

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